This is because that the moon orbits the Earth in the same direction that the Earth rotates on its axis. This extra 50 minutes which means that the same location will be experience the high tides in every 12 hours 25 minutes. This was varies between the different locations as the world or the local geography has an effect on the tidal dynamics
Tides also differ at the different times of the year that tdepending on the location of the Moon and to the Sun in relation to the Earth. At times when the Sun, the Earth, and the Moon are in the line with each other (during full and new moons), the tidal range was larger because both the Sun's and the Moon's gravitational pull create the tide.
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whats the answer ugh
Answer:
Phalanges: long bones
Sternum: flat bone
Vertebrae: Irregular bone
Enzymes that catalyze consecutive steps in a metabolic pathway often cluster together in a cell.
Which of the following statements describes a likely result of this clustering?
Choose 1 answer:
А
Pathway intermediates are prevented from entering alternative metabolic pathways.
В
Enzyme crowding decreases the efficiency of each enzyme in the pathway
The cell can be affected by toxic intermediates.
D
The enzymes in a pathway do not have enough reaction substrate to function efficiently
Answer: pathway intermediates are prevented from entering alternative metabolic pathways
Explanation: the clustering of enzymes in a metabolic pathway ensures that the product of one enzyme is efficiently transferred to the next enzyme in the pathway. So, the clustering prevents pathway intermediates from being diverted into alternative metabolic pathways.
The statement that best describes the most likely result of this clustering of enzymes is as follows:
Pathway intermediates are prevented from entering alternative metabolic pathways.Thus, the correct option for this question is A.
What are Enzymes?Enzymes may be defined as biocatalysts that increase the rate of a chemical reaction without being altered in the complete process. It is thought that all cellular reactions or processes are mediated by enzymes.
According to the context of this question, the process of assembling or clustering enzymes in any metabolic pathway makes sure that the outcome of one enzyme is operating as the reactant of the next enzyme in the same metabolic pathway.
So, the process of clustering effectively restricts the formation of intermediates and the regulation of alternative metabolic pathways.
Therefore, the correct option for this question is A.
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A person flying in a plane over Easter Island notices that the water aroundthe island appears bluer than surrounding water. What property of light waves causes the water to be a different color to the observer?
A) absorption
B) diffraction
C) construction
D) destruction
The answer to the question is the option A, that is absorption.What is absorption?Absorption refers to the process of absorption of light by an object, due to which the object appears a specific color or shade.
The molecules of an object absorb certain frequencies of light and reflect the rest of the frequencies.The light waves that appear blue are those that have shorter wave lengths as compared to the waves that appear red. When light falls on water, it absorbs some of the colors of light waves and reflects the rest of the colors. Since the water around Easter Island appears bluer than the surrounding water, it means that the water around the island absorbs more than 100% of light waves of shorter wavelengths and reflects back the rest of the light waves of longer wavelengths.Thus, the correct answer is absorption.
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What hypothesis did Darwin investigate by studying the breeding of pigeons with distinctive traits?
New species can appear gradually through small changes in an ancestral species.
The amount of variation in a population is related to the type of environment it lives in.
Organisms have only the number of offspring that are supported by the environment.
Some traits appear in each generation, while others seem to disappear in some generations.
Edg 2021 Biology
Answer:
New species can appear gradually through small changes in ancestral species
Explanation:
Answer: a) New species can appear gradually through small changes in an ancestral species.
In Zambia, which lions are likely to have migrated from a different population?
Muscle fibers contain which of the following?
Sarcolemma
Sarcoplasm
Multi-nuclei
*All of the above (correct)
Answer:
d. All of the above
Explanation: is correct. post protected
Forensic Science Question
While scientists have known of DNA's existence for much longer, until 1984 they didn't know that the DNA of each person differed
T/F?
Answer:
The statement is true
Explanation
the statement is wrong because the structure of DNA was discovered in 1953 by James Watson and Francis Crick and they explained it very well. till 1985 everything about the structure of DNA was very well known and the scientist knew that the DNA of each person differs from each other.
Answer:
True!
Explanation:
Ever since many years before 1984, Scientists knew that DNA existed. In 1984, DNA was found to differ for each and every person.
(plus i put true on my test and got it right)
Hope this helped! :]
Which of the following statements is true?
Answer:
the answer is B = all living things are made of the same elements
6.
Explain the importance of natural resources in brief.
Answer: Natural resources are an extremely important part of human existence on Earth.
Explanation
Resources such as air, water, and food are vital for the survival of human beings on Earth. Without these resources, humans and other living organisms will not be able to sustain and fulfill their basic needs.
Natural resources serve as the foundation for economic activities. It provides us with minerals and fossils which help us to gather the necessary pieces of equipment for completing our basic needs.
Natural resources particularly forests and oceans play a significant role in regulating the Earth's climate. It eliminates the impact of greenhouse gases to some extent.
Natural resources are a source of energy which we receive in the form of wind energy solar energy geothermal energy etc.
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Kendrick holds the rubber blue ball halfway up the ramp and releases ir (figure 1).The ball rolls down the ramp and along the floor beyond the end of the ramp. What force caused the ball to roll down the ramp?
The force that caused the rubber blue ball to roll down the ramp is gravity. When Kendrick held the ball halfway up the ramp and then released it, the force of gravity began to act on the ball and it started to roll down the ramp.
A ramp is an inclined plane that reduces the amount of force required to move an object to a higher level. The force of gravity, which is an attractive force between any two objects in the universe, acts on objects in the direction of the center of the Earth.
This force causes objects to fall toward the ground. When the rubber blue ball was released from the midpoint of the ramp, it began to move in the direction of the force of gravity, which caused it to roll down the ramp. The force of gravity was able to overcome the ball's inertia and caused it to accelerate down the ramp. Once the ball rolled off the end of the ramp, it continued to move forward due to its inertia.
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List 2 things that cause genetic variation in species? Help me pleaseee
Sarah learned that the steps of transcription and translation are similar to baking a cake from a recipe. The cell's genome is like a cookbook, with step-by-step directions. The mRNA copy is like writing down a copy of the instructions to give to someone else. What would the amino acids be most similar to?
The amino acids would be most similar to the ingredients used in the recipe.
When the mRNA moves out of the nucleus, it then gives the instructions (the genetic sequence) to someone else, which is tRNA. During translation, the tRNA and mRNA complex reads the genetic sequence and then binds required amino acids, sequentially. Thus, the combined amino acid chain forms the desired protein.
Therefore, the amino acids are the ingredients and the protein is the final dish.
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1. according to the punnett square, what were the chances that emma would be heterozygous/carrier?
The Punnett Square charted out the chances that Emma would be heterozygous or a carrier as 25%. In order to analyze this, it is important to understand how the Punnett Square works.
The Punnett Square utilizes genetic information from two different parents or sources in order to predict the possible offspring outcomes. It organizes and arranges each allele in different combinations, with the most common allele at the top of each box in a square. In this specific Punnett Square, the topalleles for each parent involved were S and s with the dominant-allele S being used for this example.
As such, the square reveals that for each of the four possible gamete combinations among the parents, there is one potential offspring result Combo-A which is composed of both dominant-alleles (SS) and one potential offspring result Combo-B which is composed of both recessive-alleles (ss). Finally, there is one potential offspring result Combo-C which is composed of both heterozygous-alleles (Ss).
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which of the following is not true regarding lymphatic capillaries? select one: a. lymphatic capillaries are the smallest lymphatic vessels. b. lymphatic capillaries are dead-end vessels. c. lymphatic capillaries are less porous than blood capillaries. d. lymphatic capillaries are more porous than blood capillaries.
The correct answer is option d. Lymphatic capillaries are less porous than blood capillaries. They are the smallest lymphatic vessels, which are thin-walled, closed-ended vessels that form a network of pathways throughout the body.
They are in charge of removing lymphocytes and interstitial fluid from the tissues and delivering them to the lymph nodes.
They play a crucial role in the chylomicron-based transportation of lipids, proteins, and other macromolecules.
Lymphatic capillaries can take up more fluid, proteins, and other macromolecules from the surrounding tissue because they are more porous than blood capillaries.
They do not, however, permit as much fluid and macromolecule passage through them as blood capillaries do because they are not as porous as those latter.
Complete Question:
Which of the following is not true regarding lymphatic capillaries?
select one:
a. Lymphatic capillaries are the smallest lymphatic vessels.
b. Lymphatic capillaries are dead-end vessels.
c. Lymphatic capillaries are more porous than blood capillaries.
d. Lymphatic capillaries are less porous than blood capillaries.
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Using indoor tanning bed before the age of 35 can increase your risk of melanoma, the deadliest form of skin cancer, by 59 percent. The risk increases with each use. Research demonstrates that even people who do not burn after indoor tanning or sun exposure are at an increased risk of melanoma if they tan indoors; therefore, exposure to the radiation emitted by tanning beds can cause skin cancer. This cancer is the direct result of a:
a) mutation in a protein
b) mutation in the genetic material
c) change in fat molecule
d) change in a starch molecule
Answer: mutation in the genetic material
Explanation: just took the test and got it right
This cancer is the direct result of a mutation in the genetic material.
What is Mutation?Genetic mutations, which occur as your cells divide and generate duplicates of themselves, are modifications to your DNA sequence. Your DNA teaches your body how to develop and work.
Genetic changes may result in diseases like cancer or, in the long run, may enable people to adapt to their environment more successfully.
A change in the DNA sequence is referred to as a genetic mutation. Your cells receive the information they require to carry out their functions from your DNA sequence.
Therefore, This cancer is the direct result of a mutation in the genetic material.
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A man who has pattern baldness married a woman who is a carrier for the trait. What percent of their male children would be expected to develop male pattern baldness as adults?
A 25%
B 0%
C 50%
D 100%
Answer:
C. 50%
Explanation:
Baldness is sex-linked, so we need to use the X and Y chromosome notation. Let's represent baldness with B, and no baldness as b.
Man: XB Y
Woman: XB Xb
(Remember, she's a carrier: so she has one B allele, but not both, otherwise she would express the trait.)
What's next - Punnett square, our old buddy:
XB Y
XB XB XB XB Y
Xb XB Xb Xb Y
So out of that square, they've got two males. That's our denominator. And it wants to know how many male progeny will be bald: that's only one, the one with XB Y. He will express the B allele because the Y's kinda just like a placeholder. So the probability is 50%.
Answer:
C
Explanation:
in a lineage tracing experiment, investigators labeled a single cell in the dorsal neural tube with a fluorescent molecule in order to trace the fate of its descendants during development. it was found that all descendants of this labeled cell became pigment cells. what can be concluded about the state of determination of the labeled cell at the time of labeling?
Based on the results of the lineage tracing experiment, it can be concluded that the labeled cell was already determined to become a pigment cell at the time of labeling. This is because all of its descendants also became pigment cells, indicating that they inherited the same fate determination from the original labeled cell.
Cell fate determination refers to the process by which a cell becomes committed to a particular developmental fate, such as becoming a specific type of tissue or cell.
This determination can occur through a variety of mechanisms, including intrinsic factors such as gene expression patterns or extrinsic factors such as signals from neighboring cells or the environment.
In this experiment, the fact that all descendants of the labeled cell became pigment cells suggests that the determination to become a pigment cell had already occurred at the time of labeling.
This determination could have occurred through a variety of mechanisms, such as the expression of specific genes or exposure to extrinsic signals that directed the cell towards a pigment cell fate.
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The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that the spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome
Answer:
Cell 2
Explanation:
Through mitosis, a cell can divide and produce two identical daughter cells. The process occurs in four stages. During anaphase, chromatids sisters separate and migrate to the poles. The student is searching for cell 2.
-----------------------------------------------------
Mitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced.
First occurs duplication of the cell content, and then the separation into two new cells happens.
Mitosis occurs in only one phase.
In the prophase, it occurs chromosomes condensation and nuclear membrane breaks.During the metaphase, chromosomes are taken toward the center of the cell by the spindle apparatus. Once in the equatorial plane, chromosomes line up.Each chromatid joins with a microtubule of opposites poles.
In Anaphase, bonds between chromatids break. They separate and migrate to the opposite poles.In telophase, duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole.Immediately after mitosis, cytokinesis occurs.
The diagram shows
Metaphase → chromosomes in the equatorial planeAnaphase → chromosomes migrating to the polesTelophase → chromosomes already in the poles The cell with the nuclear membrane and visible chromosomes
If the student is looking for evidence that the spindle fibers are separating the chromosomes, he must focus on cell number two, which is going through the anaphase.
Cell number two shows how the fibers of the spindle apparatus are driving chromatids to each pole.
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1.
All biomolecules are made up of the elements(1 point)
A-carbon, hydrogen, nitrogen, and oxygen.
B-carbon, hydrogen, and oxygen.
C-carbon, hydrogen, nitrogen, oxygen, and sulfur.
D-carbon, hydrogen, oxygen, and sulfur.
2.
Nucleic acids are the building blocks of(1 point)
A-DNA.
B-proteins.
C-nucleotides.
D-biomolecules.
3. One of the jobs of lipids is to act as chemical messengers. This job is particularly important for the function of the(1 point)
A-brain.
B-lungs.
C-stomach.
D-heart.
4.
A complex carbohydrate with long strands of glucose is known as a(1 point)
A-multisaccharide.
B-trisaccharide.
C-saccharide
D-polysaccharide.
5.
What makes amino acids unique from fatty acids and sugars?(1 point)
A-Amino acids are building blocks to larger molecules; fatty acids and sugars are not.
B-Amino acids contain nitrogen; fatty acids and sugars do not.
C-Genetic material is made of nucleotides, which contain amino acids; fatty acids and sugars are not part of genetic material.
D-Amino acids make up proteins, which provide energy for the body; fatty acids and sugars do not provide energy.
Answer:
1. A. carbon,hydrogen,nitorgen and oxygen
2.C. Nucleotides
3.A.Brain
4.D. Polysaccharide
5. B.Amino acids contain nitrogen; fatty acids and sugars do not.
Many compounds that are of biological importance are comprised of carbon, hydrogen and oxygen and other heteroatoms such as sulfur, nitrogen etc.
The correct answers are as follows;
1) The correct answer is B: carbon, hydrogen, and oxygen
2) The correct answer is A: DNA
3) The correct answer is A: brain
4) The correct answer is D: polysaccharide
5) The correct answer is B: Amino acids contain nitrogen; fatty acids and sugars do not
Biomolecules are molecules that are useful to in biochemical processes.
Several biomolecules are known and are of great importance in the body as they facilitate life.
Most of these biomolecules contain carbon, hydrogen, and oxygen.
A prominent group of biomolecules are the nucleic acids which are composed of nucleotides. They come together to form DNA.
Lipids are another category of biomolecules which are important components of hormones which serve as chemical messengers in the body and regulate the activities of the brain.
Glucose are biomolecules which come together to give larger molecules called polysaccharide.
Both fatty acids and sugars are biomolecules. Fatty acids and sugars all contain carbon, hydrogen and oxygen but not nitrogen. Amino acids are different from fatty acids and sugars because they contain nitrogen.
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I NEED HELP WITH THESE QUESTIoNS PLEASE HELP ME all answers i need thx
1. What is a nucleotide? How are nucleotides held together in DNA?
2. What is DNA replication? When and where does it occur?
3. Explain the steps of DNA replication, including the enzymes used?
4. What does the base pair rule state?
5. What is RNA?
6. What are three differences between DNA and RNA?
7. What are the three types of RNA?
8. What is transcription? Explain the process, including the ending product.
9. What is a codon? How do you read them?
10. What is translation? Explain the process, including the end product.
11. Explain the role of mRNA, rRNA and tRNA in translation.
12. What is a mutation?
13. How are mutations caused?
14. What are the difference types of mutations?
15. What are some effects of mutations?
16. What is cancer?
Answer:
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1. Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide. This produces an alternating backbone of sugar - phosphate - sugar - phosphate all along the polynucleotide chain.
2. DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.
3. Enzymes that participate in the eukaryotic DNA replication process include: DNA helicase - unwinds and separates double stranded DNA as it moves along the DNA. It forms the replication fork by breaking hydrogen bonds between nucleotide pairs in DNA. DNA primase - a type of RNA polymerase that generates RNA primers.
4. Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio (base pair rule) of purine and pyrimidine bases (i.e., A+G=T+C) and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.
5. RNA plays a central role in turning genetic information into your body's proteins. This remarkable molecule also carries the genetic instructions for many viruses, and it may have helped life get its start.
6. the three main structural differences between RNA and DNA are as follows: RNA is single-stranded while DNA is double-stranded. RNA contains uracil while DNA contains thymine. RNA has the sugar ribose while DNA has the sugar deoxyribose.
7. Of the many types of RNA, the three most well-known and most commonly studied are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA), which are present in all organisms.
8. Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.
9. A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. DNA and RNA molecules are written in a language of four nucleotides; meanwhile, the language of proteins includes 20 amino acids.
10. Translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding amino acid sequence that it encodes.
11. Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein.
12. A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
13. A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.
14. There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease. Point mutations are the most common type of mutation and there are two types.
15. By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.
16. Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue. Cancer often has the ability to spread throughout your body. Cancer is the second-leading cause of death in the world.
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Question 2
1 pts
In November 2013 an object orbiting the sun seemed to disappear behind the sun. When a
satellite did not detect the object, astronomers thought that the object had been destroyed when
it passed close to the sun. However, when another satellite detected a small, bright object with a
fan-shaped tail, astronomers proposed that the object was not destroyed.
What type of object were astronomers most likely observing?
OF A comet
OG An asteroid
OH A meteor
OJ A nebula
Answer:
A coment
Explanation:
SUBJECT: VET SCIENCE
hi please help thank you<3!!
Select the correct answer.
Dorothy has to talk about the use of animals in primitive times to her class. Which point should she include in her talk?
OA.
Animals were used for food.
OB.
Animals were used for experiments.
Ос.
Animals were used for companionship.
OD
Animals were conserved.
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which of these best exemplifies what a family system is? group of answer choices patterns for managing behavior family members and their patterns for managing behavior all family members related by blood marriage or adoption a group of planets on star trek representing neighboring galaxies and nebulae
The best exemplification of what a family system is b. family members and their patterns for managing behavior.
A family system refers to a group of individuals who have different relationships, including blood, marriage, and adoption, it is defined by its interaction patterns and its boundaries, which determine who is included in the family unit and who is excluded. In addition, each member of the family plays a specific role in this system, which may change over time. The behavior of family members in a family system is governed by certain patterns, which may be conscious or unconscious. These patterns are shaped by a variety of factors, including cultural norms, family history, and individual personalities. They help to define the roles that family members play within the system, as well as the rules and expectations that govern their behavior.
Patterns for managing behavior refer to the ways in which family members interact with one another in order to achieve specific goals. These patterns may be positive or negative, depending on the context in which they occur. Positive patterns for managing behavior include effective communication, active listening, and mutual respect. Negative patterns for managing behavior include conflict, avoidance, and power struggles.In conclusion, a family system is a group of individuals who are related by blood, marriage, or adoption, and who interact with one another in specific ways. The behavior of family members is shaped by patterns for managing behavior, which are influenced by a variety of factors.
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Which answer choice best describes a community?
A. Three-spines stickleback living in estuaries
B. Different species of lizards occupying the niche in a desert
C. Roosting mother bags recognizing their offspring
D. Praying mantises caring for their young
Answer:
A
Explanation:
it is more then one character
the most common form of fossilization is
a. preserved remains
b. perminerialization
c. molds
d. replacement
Answer:
permineralization
Explanation:
Over the past 300 years, how did the role of the ocean change with respect to the amount of carbon dioxide in the atmosphere
Answer:
Ocean plays the role of regulator.
Explanation:
The role of the ocean change with respect to the amount of carbon dioxide in the atmosphere because oceans plays a role of regulator and balancer. When there is high amount of carbon dioxide in the atmosphere due to burning of fossil fuels and volcanic eruptions so the ocean absorb that extra amount of carbon dioxide from the atmosphere while on the other hand, when there is decrease in the concentration of carbon dioxide in the atmosphere, the ocean gives its carbondioxide gas to the atmosphere to regulate the concentration.
Which of these describes a behavioral adaptation that will increase the probability that a species will survive?
(Letter A) A bird has brown feathers that help it blend with the ground where its nest is located.
(Letter B) A giraffe has long legs that help it reach leaves growing at the tops of acacia trees.
(Letter C) A moth has large dark spots on its wings that resemble eyes and scare away predators.
(Letter D) A mother bear stays with her cubs for a year and a half until they learn skills to live on their own.
Answer:
I think it's (Letter A) A bird has brown feathers that help it blend with ground where it's nest is located.
I hope this helps
Explanation:
What according to who , is the definition of health?
Answer:
Health is the state of complete physical mental and social well being and not merely the absence of diseases or infirmity.
Explanation:
Hope it will helps you
PLEASE HELP!! (DONT FAKE ANSWER PLZ)
Winter: December through March; Winter Solstice
Fall: September through December; Autumnal Equinox
Spring: March through June; Spring Equinox
A cell in a multicellular organism receives a signal to increase production of a transmembrane protein found in the cell membrane. Which of the following combinations of structures is expected to be directly involved in the process?
a) Nucleus, chloroplast, cytoskeleton, ribosome
b) Nucleus, ribosome, ER, Golgi complex
c) Lysosome, mitochondria, Golgi complex, cytoskeleton
d) Chloroplasts, nucleus, mitochondria, lysosome
I know that c is wrong, but could someone help explain which is the right one and why c is wrong?
Answer:
b) Nucleus, ribosome, ER, Golgi complex
Explanation:
"B" is correct because, with protein production, DNA must first be transcripted to RNA in the nucleus, then the RNA travels to a ribosome at the ER to start translation (RNA to amino acid sequence). Finally, it is sent to the Golgi complex to be further processed and/or sorted to be transported to its destination (in this case, it will be sorted to be transported to the cell membrane).
"C" is incorrect: the mitochondria, cytoskeleton, and lysosome do not play a direct role in protein synthesis.
The cytoskeleton is primarily involved with maintaining the structure of the cell along with spindle development in mitosis.The mitochondrion is "the powerhouse of the cell" and is mainly involved with cellular respiration: the process of converting glucose to energy (ATP).Lysosomes' typical function is to break down excess/worn-out organelles and to kill pathogens. Lysosomes have been hypothesized to be part of protein synthesis; however, it has not been confirmed yet.