As sleep begins, the levels of neurotransmitters sent to the forebrain from reticular formation begin to decrease. T/F?

Answers

Answer 1

False. As sleep begins, the levels of neurotransmitters sent to the forebrain from the reticular formation do not decrease. It sends signals to the forebrain to promote wakefulness and arousal.

In fact, the reticular formation, a network of nerve pathways in the brainstem, plays a crucial role in regulating sleep and wakefulness.  During wakefulness, the reticular formation releases neurotransmitters such as norepinephrine, serotonin, and acetylcholine, which help maintain an alert and awake state. These neurotransmitters promote the activation and arousal of the forebrain.

When it comes to the onset of sleep, the activity of the reticular formation changes. Rather than decreasing neurotransmitter levels, it actually undergoes a shift in its activity. The reticular formation transitions from promoting wakefulness to inhibiting wakefulness and promoting sleep.

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Related Questions

What would happen to your dragon if the 10th nucleotide in sequence 3 was changed to a Cytosine? If it already was a Cytosine, what if it changed to an Adenine?

Answers

Answer:

A point mutation with occur.

Explanation:

This quesiton might need more info but in general a point mutation will occur.

Is nucleic acid an organic compound

Answers

yes i believe they are organic.

Answer:

an organic compound

Explanation:

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don’t answer if u don’t know

HEELLPP ASAPP PLEASEE!!dont answer if u dont know

Answers

Answer:

Brown is the dominant gene and white is the recessive gene.

Explanation:

If brown were to be dominant then the mice would most likely all be brown unless the got both a white from mom and dad which is most likely due to brown being recessive the dad could be part white you just wouldn't see it. And since the mother is white all of the mice get a white gene from the mom and since the dad most likely has a white gene hidden inside of him only tow mice became fully white while the siblings were brown.

Hope this helps.

what animals that grow naturally in the Pacific Northwest and Kitsap Peninsula ? please help

Answers

Answer: Pacific Northwest Animals & Birds

Spotted and snowy owls. Bald and Golden eagles. Pileated woodpecker. Rufous hummingbird. Great Blue Heron and Canada goose. Seabirds, including cormorant. Bear. Olympic marmot.

Kitsap Peninsula:

Marine mammals of the sound include orcas, sea lions, sea otters, gray whales, humpback whales, and harbor seals. Underwater plants provide food, breeding areas, nurseries, and resting places for wildlife in the sound.

a lily-pad in a pond doubles in size every second (really not sure what kind of mutation would cause this). after 1 minute, the lily-pad covers the whole pond. at what point in time did the lily-pad cover exactly 25% of the pond.

Answers

If the lily-pad doubles in size every second, then its size after n seconds can be calculated as 2^n times its original size.

Let's assume that the lily-pad covers the whole pond after t seconds. Since 1 minute is equal to 60 seconds, we can write: 2^t = 2^60

Simplifying this equation, we get: t = 60

Therefore, the lily-pad covers the whole pond after 60 seconds.

To find out at what point in time the lily-pad covers exactly 25% of the pond, we need to determine how many seconds it takes for the lily-pad to cover half of the pond (50%).

Since the lily-pad doubles in size every second, it will cover half of the pond after log2(0.5) = -1 seconds, or in other words, after half a second.

Therefore, if the lily-pad covers the whole pond after 60 seconds, it covers 25% of the pond after half the time it takes to cover half the pond, which is: 0.5/2 = 0.25 seconds So the lily-pad covers exactly 25% of the pond after 0.25 seconds.

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Select all of the features that you would include if you drew a short segment of DNA. 18 Check All That Apply 0.1 points Double-stranded eBook Single-stranded References Helical shape MOOOOOOO Chains of nucleotides Nucleotides are base paired with T bonded to A and C bonded to G through hydrog Nucleotides contain ribose Backbone comprised of sugar and phosphate groups

Answers

If you were to draw a short segment of DNA, the features that you would include are double-stranded, helical shape, chains of nucleotides, nucleotides base paired with T bonded to A and C bonded to G.

When drawing a short segment of DNA, it is important to represent its key features accurately. DNA is double-stranded, meaning it consists of two complementary strands that are connected through base pairing. The strands have a helical shape, resembling a twisted ladder or spiral staircase. DNA is composed of chains of nucleotides, which are the building blocks of DNA.

These nucleotides consist of a nitrogenous base RNA and DNA (adenine, thymine, cytosine, or guanine), a sugar (deoxyribose), and a phosphate group. The nucleotides are base paired with T (thymine) bonded to A (adenine) and C (cytosine) bonded to G (guanine) through hydrogen bonds. These base pairs form the rungs of the DNA ladder. The nucleotides are connected by the sugar-phosphate backbone, which gives stability to the DNA molecule.

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what is the name of the space between two neurons during neuron transmission

Answers

Answer:

synapse

Explanation:

synapse is the answer to the question

Describe the advantage of broad-leaved trees losing their leaves as winter sets in and the advantage of needle-leaved trees keeping their leaves if they are in poor soil

Answers

Answer:

The advantage of shedding broad leaves in the winter is to conserve the energy that needs to expand in order to provide heat to each part of the plant including leaves as in winters it becomes very dry and cold. If they do not shed their leaves they have to spend more energy to spend energy on leaves.

Needles like leaves have a thick cuticle layer that prevents from losing water in dry conditions or conditions with a limited amount of water in the soil. These leaves also help in photosynthesis by capturing more sunlight as they have a larger surface area. These adaptions can live in poor soil, rain and snowy conditions.

The pictureeeeeeeeeeee

The pictureeeeeeeeeeee

Answers

Answer: thats a vagina my dude

Explanation:

A hiatal hernia is a protrusion of a portion of the _____ through the ______. Group of answer choices stomach; diaphragm duodenum; pyloric sphincter small intestine; inguinal canal rectum; anus

Answers

A hiatal hernia is a protrusion of a portion of the stomach through the diaphragm.

Hiatal hernia is a condition which arises due to a rise in blood pressure. In this condition the stomach bulges up through an opening in the diaphragm. This condition interjects with the normal mechanism of reflux that occurs through the sphincter, which is present in the esophagus. This condition usually occurs when there is excessive pressure around the stomach due to activities like repeated vomiting. This condition is usually not fatal, however, in rare and serious cases this condition can effect the esophagus and cause esophageal cancer. This condition can also lead to leakage of stomach acids and cause ulcers in the alimentary canal. In serious cases of hiatal hernia the blood flow to and from the intestine can also be effected. Serious cases need surgical treatment.

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Hi!!! so I need someone to answer the 7 questions on this "Sci-Lit" quiz its for a biology class. (I WILL MARK BRAINLIEST IF CORRECT)

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What’s the question? I can’t see it

After Intravenous administration, galactose may be effectively used to target: Select one: O a. The vasculature O b. The stomach Oc. The spleen O d. The kidneys The liver e. Translation is: Select one: O a. O b. The delivery of a nanomedicine O. C. The process used by the ribosome to effect cell division The flow of information from RNA to protein O d. O e. The flow of genetic information from DNA to RNA A precancerous state

Answers

The liver and  The process used by the ribosome to effect cell division. Therefore, option (E) and (C) are correct.

The liver has specific receptors for galactose, such as the asialoglycoprotein receptor, which allows galactose-conjugated molecules to selectively bind and be taken up by hepatocytes in the liver.

Translation is the process used by the ribosome to convert the information stored in RNA into proteins. During translation, the ribosome reads the mRNA sequence and assembles amino acids into a polypeptide chain according to the genetic code, leading to protein synthesis.

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Explain how to distinguish different species by their DNA.

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DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.

To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.

The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.

These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.

By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.

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"Please discuss how the occupation environment can develop the
risk of infection by using (2 examples) of blood-borne

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The occupational environment is one of the most overlooked considerations when it comes to reducing the risk of infection by blood-borne pathogens.

It is important for employers to understand the potential for infection in the workplace and take preventative measures to protect employees. Two examples of how the occupational environment can develop the risk of infection by blood-borne pathogens include the improper use of personal protective equipment (PPE) and lack of hygiene.

When it comes to the proper use of PPE in the workplace, it is extremely important that the right types of equipment are used and that it is fitted properly. This includes wearing gloves and other PPE such as face shields, which can help protect against exposure to infected material. Not wearing the right type or size of PPE can increase the risk of infection if the material contains blood-borne pathogens.

Proper hygiene techniques are also an important part of protecting against the risk of infection in the workplace. Hand washing must be done on a regular basis, and it is highly recommended that any employee cleaning or handling contaminated materials should use a gown or gloves in order to reduce the risk of contact with infectious material.

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what evidence supports the hypothesis that rna was the genetic material early in evolutionary history? some viruses have rna genomes. rna has been isolated from more ancient sources than dna. rna can catalyze enzymatic reactions. some prokaryotes have rna genomes.

Answers

The evidences that supports the hypothesis that RNA was the genetic material early in evolutionary history are RNA can catalyze enzymatic reactions, RNA has been isolated from more ancient sources than DNA, some viruses have RNA genomes, some prokaryotes have RNA genomes and RNA can perform many functions, including carrying genetic information and catalyzing chemical reactions.

Several pieces of evidence support the hypothesis that RNA was the genetic material early in evolutionary history:

Some viruses have RNA genomes, indicating that RNA was the primary genetic material before DNA.Some prokaryotes have RNA genomes, indicating that RNA was a key component of early cells.RNA has been isolated from more ancient sources than DNA, indicating that RNA existed before DNA.RNA can catalyze enzymatic reactions, indicating that it has a functional role in cellular processes and may have been an early enzyme in primitive cells.

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Explain the processes involved in the transportation of absorbed
nutrients throughout the body.

Answers

Answer:

Absorption: The process of absorbing nutrients occurs primarily in the small intestine. Once the food is broken down into smaller molecules through digestion, these molecules are absorbed into the bloodstream. For example, carbohydrates are broken down into simple sugars, proteins into amino acids, and fats into fatty acids and glycerol.

Circulatory System: The circulatory system, composed of the heart, blood vessels, and blood, plays a crucial role in transporting absorbed nutrients. The blood vessels form an extensive network that reaches all tissues and organs in the body.

Hepatic Portal System: After absorption, most of the nutrients are transported to the liver through a specialized system called the hepatic portal system. This system ensures that the liver, which performs various metabolic functions, receives a concentrated supply of nutrients before they are distributed throughout the body.

Bloodstream Transport: Once in the bloodstream, nutrients are carried by the plasma, the liquid component of blood. Different nutrients use specific mechanisms for transport:

Glucose: It is transported by facilitated diffusion or active transport, depending on the concentration gradient, with the help of insulin.

Amino Acids: They are transported through the bloodstream by specific carrier proteins.

Fats: Dietary fats are initially packaged into structures called chylomicrons and transported through the lymphatic system before entering the bloodstream. Once in the bloodstream, fats are carried by lipoproteins such as low-density lipoprotein (LDL) and high-density lipoprotein (HDL).

Distribution to Tissues: As the blood circulates, nutrients are distributed to various tissues and organs according to their specific needs. Nutrients are delivered to cells through the capillaries, the smallest blood vessels in the body, which have thin walls that allow for the efficient exchange of nutrients and waste products.

Cellular Uptake: Nutrients are taken up by cells through various mechanisms. For instance, glucose enters cells with the help of insulin, while amino acids are transported into cells through specific carrier proteins. Fats are taken up by cells through receptor-mediated endocytosis or by diffusion.

Metabolism: Once inside the cells, nutrients undergo metabolic processes to produce energy or build new molecules. Glucose, for example, can be metabolized through glycolysis, the Krebs cycle, and oxidative phosphorylation to generate ATP, the cell's energy currency.

Waste Removal: Metabolic byproducts, such as carbon dioxide and urea, are generated during nutrient metabolism. These waste products are transported back into the bloodstream and eventually eliminated from the body through the lungs (carbon dioxide) or the kidneys (urea).

It's important to note that different nutrients may have different transport mechanisms and pathways. The body's ability to efficiently transport and utilize absorbed nutrients is vital for maintaining proper functioning and overall health.

Blood glucose why were physical activity and caffeine and alcohol intake the controlled variables?

Answers

Because you have control over how much time you spend engaging in physical activity and how much coffee and alcohol you eat, these are the variables that can be managed.

How physical activity affect brain activity ?

It can maintain the condition of both your bones and muscles in addition to your brain. Exercise can help you think more clearly, learn new things, solve problems, and maintain emotional equilibrium. Both memory and anxiety or despair can be lessened by it.

By encouraging the creation of new connections between cells in a variety of significant cortical areas of the brain, exercise increases brain plasticity. Exercise increased brain growth factors, according to recent UCLA research, which made it simpler for the brain to form new neural connections.

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What is the large multiprotein assembly called at the nuclear pore?
A) Nuclear pore assembly
B) Nuclear pore complex
C) Nuclear pore chamber
D) Nuclear pore core

Answers

I Think The answer is a or b I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you

In Osmosis, a cell becomes turgid when it:
A. expands from absorbing too much water.
B. bursts from absorbing too much water.
C. bursts from absorbing too much water.
D. contracts from absorbing too much water.

Answers

Answer:

A

Explanation:

This occurs when a plant cell is placed in a hypotonic solution.A solution were the external solution concentration is less than the internal concentration of the cell, causing water to rush into the cell.

During osmosis by absorbing too much water from outside the cell, a cell becomes turgid. The correct option is A.

What is osmosis?

Osmosis is the passage of water molecules via a cell's partially permeable membrane from a solution with a large concentration of water molecules to a solution with a lower concentration of water molecules.

Osmosis occurs when the concentration gradient of water reaches zero or when the water's hydrostatic pressure equals the osmotic pressure.

Endosmosis and exosmosis are the two main types of osmosis that occur when water moves across the cell membrane. When cells are placed in a hypotonic solution, endosmosis occurs, which is the movement of water into the cell.

When cells are placed in a hypotonic solution, exosmosis occurs, which is the movement of water out of the cell.

Thus, the correct option is A.

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The endocrine system regulates bodily processes through:0000nerve impulsesnegative feedback.transduction.None of these choices are correct.

Answers

Endocrine system regulates the body through the release of hormones in the bloodstream to the target organ. Many endocrine glands are ductless organs that secrete hormones in the blood. To name a few, Pituitary glands secrete multiple hormones like growth hormones.

ANSWER: None of these choices are correct.

A tank contains 180 gallons of water and 15 oz of salt. water containing a salt concentration of 1/7(1+1/5sint) oz/gal flows into the tank at a rate of 8 gal/min, and the mixture in the tank flows out at the same rate.

the long-time behavior of the solution is an oscillation about a certain constant level. what is this level? what is the amplitude of the oscillation?

Answers

The constant level of the long-term behavior of the solution is approximately 15.625 oz. The amplitude of the oscillation is approximately 0.1786 oz.

What is the constant level and amplitude of the solution's oscillation?

The given problem describes a tank with water and salt, where water flows into the tank at a certain rate and the mixture flows out at the same rate. The salt concentration of the incoming water is given by the function 1/7(1+1/5sint) oz/gal.

To determine the long-term behavior of the solution, we need to find the equilibrium state where the inflow and outflow rates balance out. At equilibrium, the amount of salt entering the tank is equal to the amount leaving the tank.

By setting up an equation using the given information, we can solve for the constant level and amplitude of the oscillation. The equation will involve the amount of salt in the tank, the rate of inflow and outflow, and the time.

Further calculations yield that the constant level of the solution is approximately 15.625 oz, meaning that the concentration of salt in the tank will oscillate around this value. The amplitude of the oscillation is approximately 0.1786 oz, indicating the range within which the concentration of salt will fluctuate.

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Fill in the blank question. The presence of both inherent diversity and acquired diversity is called

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The presence of both inherent diversity and acquired diversity is called intersectionality. Inherent diversity refers to the characteristics we are born with, such as race, gender, and sexual orientation. Acquired diversity, on the other hand, includes the characteristics we gain throughout our lives, such as education, language proficiency, and work experience.


The presence of both inherent diversity and acquired diversity is called "cognitive diversity." Inherent diversity refers to the differences in traits that people are born with, such as race, gender, and ethnicity. Acquired diversity involves the differences in experiences and perspectives gained throughout a person's life, such as education, skills, and work experiences. Cognitive diversity is important in organizations because it fosters a wide range of ideas and opinions, leading to better problem-solving, innovation, and adaptability. Embracing cognitive diversity can create a more inclusive and effective work environment.

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true or false: plants that reproduce with flagellated sperm form a monophyletic group.

Answers

The statement is false. While it is true that some plants, such as ferns and mosses, have flagellated sperm, these plants do not form a monophyletic group.

In other words, they do not all share a common ancestor. Instead, the ability to produce flagellated sperm has evolved independently in multiple plant lineages. For example, ferns and mosses are not closely related to each other, yet they both have flagellated sperm. Therefore, the presence of flagellated sperm is not a reliable trait for determining evolutionary relationships among plants.


This group, known as the Archegoniatae, includes bryophytes (mosses, liverworts, and hornworts) and pteridophytes (ferns and their allies). These plants share a common ancestor and have retained the ancestral trait of using flagellated sperm for reproduction.

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Discuss the relationship between the digestive systems a carnivore and herbivore and compare the length of the digestive system and diet of that animal

Answers

Herbivores have longer digestive systems than carnivores have.

How the herbivores have longer digestive systems compared to carnivores?

We can conclude that the herbivores have longer digestive systems compared to carnivores.

Carnivores feeds on other animals whereas herbivores eats plants.Most herbivores have a four stomach compartment system that helps them process and digest their food.This is because they have to process cellulose in plants which needs to be properly broken down.Flesh-eating carnivores do not require this arrangement.The four stomach compartment of most herbivores includes Rumen, Reticulum, omasum and abomasum.They also chew the cud whereby they regurgitate food materials.

Thus, this could be the answer.

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A bear, many trees, and the river is known as

A. Organism

B. Population

C. Community

D. Ecosystem

Answers

Ecosystem should be correct sorry if I am wrong
d. ecosystem
the definition of this is, "a biological community of interacting organisms and their physical environment."

Make predictions about the amount/ratios/types of macromolecules for the following based on the description.
Adipose: A cell that is not very active. Primary fat storage in animals.

Xylem: a plant cell that is known for extremely tough cell walls. The cells themselves then die and become thin tubes for water transport.


Muscle cells: muscle cells are the primary location of actin and myosin which are used for muscle contraction.

Red blood cells: A cell that is filled with hemoglobin which is used to transport oxygen. However, these cells are final cellular products that are not nucleated and are routinely replaced.

Liver cells: The liver is a highly metabolic organ that helps with detoxification and lipid digestion. The chemical reactions in the liver are almost impossible to duplicate in the lab.

Answers

The macromolecules are as follows:

Adipose: lipidsXylem: carbohydratesMuscle cells: proteinsRed blood cells: proteinsLiver cells: proteins

What are macromolecules?

Macromolecules refer to the large molecules found in living organisms that form the building block of life.

There are four main macromolecules;

carbohydrates - these are the energy-giving molecules that are composed of the elements carbon, hydrogen, and oxygen.proteins - these are the building blocks of the structure of living organisms. They are composed of amino acid monomerslipids - they serve as insulators and energy molecules. They are water-insolublenucleic acids - they store genetic information

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DNA replication happens in _____ phase of the cell cycle in the _________ of the cell.

Answers

DNA replication happens in the S phase of the cell cycle in the nucleus of the cell

52
Which is one of the big ideas that guides Earth science?
O Earth's waters
O Earth in the universe
O Earth in the solar system
O evolution of life on Earth

Answers

The evolution of life on Earth is the answer

Answer:

D.evolutin of life on earth

Explanation:

because revolution in the earth is better because the earth will be more revolution When you do this

13) What are the 5 ELEMENTS found in DNA and other Nucleic acids, like RNA?

13) What are the 5 ELEMENTS found in DNA and other Nucleic acids, like RNA?

Answers

Answer:

Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P). Nucleic acids are very large macromolecules composed of repetitive units of the same building blocks, nucleotides, similar to a pearl necklace made of many pearls.

Chemical digestion reduces large complex molecules to simpler compounds by the process of A) mastication B) catabolism C) anabolism D) excretion

Answers

correct answer is :- Catabolism

The metabolic process known as catabolism converts large, complex molecules into simpler ones in order to produce energy. The destructive branch of metabolism causes the release of energy.

In this process, big molecules like polysaccharides, lipids, nucleic acids, and proteins are broken down into smaller subunits like monosaccharides, fatty acids, nucleotides, and amino acids, respectively.

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In order to ensure account security, the developers at Amazon have come up with a new algorithm to determine the strength of a password. According to this algorithm, the strength of a password consisting of lowercase English letters only, is calculated as the sum of the number of distinct characters present in all possible substrings of that password. Given a string password, find the strength of that password. Note: A substring is a contiguous sequence of characters within a string, taken in the same order. Example password="good" One positive impact that industrialization has had is that. in a ______, substance have no definitie volume and particles move very quickly ABCD is a rectangle. What is the value of x Which of the following is NOT a source of external economics? A. specialized suppliers C. knowledge spillovers B. labor market pooling D. fixed cost of production Explain the colonial government. What houses were there? Who had the most power? Why? the _________ of an investment is determined by how easy it is to sell an asset at any given time. upon termination of employment, an employee can keep his or her savings in a tax-sheltered account by transferring the retirement funds from the employer's account to another account without penalty in a protection called . Read the lines from Twelfth Night.Madam, you have done me wrong. Notorious wrong. Malvolio, Act VWhat is the effect of the phrase Notorious wrong?It sets a furious tone.It shows Malvolio plans to seek revenge.It creates a desperate tone.It suggests Malvolio has a bad reputation. 1. Describe your first thoughts about the Multiple Intelligence project?2. Negative or positive, what comes to mind specifically? 3. Explain some of the most interesting discoveries you made while working on this project?4. What were some of my most challenging moments and what made them so? ANSWER FAST !!!!!!!!!!!!!!!!!!!!!!!!!!!!! What is a limiting factor whose effects are dependent on a populations density?1. habitat loss2. law of the minimum3. density-dependent factor4. density-independent factor Plzzz help!!!The electromagnetic spectrum contains more than just the visible light that you see.Name one other form of energy that is in the electromagnetic spectrum other than ultraviolet or infrared light.Answer in a complete sentence. DOES TECHNOLOGY MAKE US FEEL MORE ALONE? Need help 7 th grade math from 5 to 7 Let x and y be integers. Prove the following statements. If xy is even, then x is even or y is even. If xy is odd, then x is odd and y is odd. Let a be an integer. Use the results of Exercise 5 to prove the following statements. If a^2 is even, then a is even. If a^2 is odd, then a is odd. PLEAS HELP State the Levels of Organization from smallest to largest. Question 6 options: tissues, organs, cells, organ systems cells, tissues, organs, organs systems organ systems, cells, organs, tissues organs, cells, tissues, organ systems according to perrow, craft organizations have _____ exceptions in terms of task variability, and they are dealing with _____ problems. they should be structured with _____ formalization. Find the 50th percentile from the following sorted list of 34 data128 134 144 146 153190207 209220221237256263 265271273283324 350371389 401 416 417422424 443 444448 466486487 490 50050th percentile =Enter an integer or decimal number [more..]Question Help: Message instructor Which of the following statements is the least effective claim?A.Nineteenth-century authors may or may not have produced some of the most influential works in literature.B.Walt Whitman was one of the best 19th-century American writers.C.Nineteenth-century novels are absolutely relevant to readers today. D.Crime and Punishment is the greatest example of a 19th-century Russian novel.