PLEASE HELP I NEED ANSWERS How Could Krusty’s Experiment been Improved? PLEASE DUE TONIGHT WILL GIVE BRAINLIEST!!!!!!

Answer:

B

Explanation:

Took the test 2021

Answer:

light micro = use of beam of light,

electron = beam of electrons, exaamine living cells

Explanation:

Answer:

Convection

Explanation:

convection is the process of losing heat through the movement of air or water molecules

Testosterone is an example of an androgen.

Testosterone belongs to a class of male hormones called androgens, which are sometimes called steroids or anabolic steroids. IN men, testosterone is mainly produced in the testes. In women's bodies, testosterone is produced in the ovaries, adrenal glands, fat cells, and skin cells.

Testosterone products come in different forms, including gels, injectable solutions, patches, pills and pellets implanted under the skin. Once a patient starts testosterone therapy, the patient usually undergoes lifelong treatment. Testosterone is an anabolic steroid that occurs naturally in the human body. “Anabolic” means to build up or promote growth.

Hence, A is the correct option

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From the above information, we conclude that in all the water samples number of the plant-like organisms is more than the number of animal-like organisms. When the number of nutrients in water increases the algae covers the whole area and this process is known as eutrophication.

Eutrophication is the process in which the whole area of the water is covered by algae or phytoplankton due to the presence of nutrients in excessive amounts.

The gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem is termed eutrophication.

As we see in the given data that the number of plant organisms in all the water samples is more than that of animal-like organisms, we conclude that the process of eutrophication takes place there.

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Answer:

The circulatory system works with the digestive system to get nutrients to all the body cells

Explanation:

The digestive system gets the nutrients from the food we eat and hands it over to the the blood. The circulatory system then carries those nutrients to the cells of the body.

Answer:

While calcium, phosphate, and magnesium all contribute to bone formation, collagen is the component of the bone matrix that provides tensile strength.

Bone cells secrete a large number of bone proteins. However, not all matrix proteins are synthesized by osteoblasts; albumin and 2HS-glycoprotein, for example, are derived from the blood. The organic component of the bone matrix is primarily composed of type I collagen (90%), which provides tensile strength to the bone. Bone contains calcium, magnesium, and phosphate ions, and the mineral crystals in bone provide strength and rigidity to the matrix upon which they are deposited.

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Answer:

hope this helps

Explanation:

A genome is the complete set of genetic information in an organism. It provides all of the information the organism requires to function. In living organisms, the genome is stored in long molecules of DNA called chromosomes.

The peptide sequence of the internal peptide, based on the given information, is K-E-W-T-M-V-R.

Based on the given information:

a) Amino acid analysis indicates the presence of K, M, E, W, V, T, and R in the peptide.

b) Treatment with FDNB and acid peptide sequence hydrolysis yields DNP-E and s-DNP-K, suggesting the presence of these amino acids in the sequence.

c) Trypsin treatment produces a tripeptide containing K, E, and V, and another tripeptide containing W, T, and M. Additionally, free arginine is obtained, indicating the presence of arginine.

d) Cyanogen bromide treatment results in a dipeptide containing W and T, and a pentapeptide containing R, E, V, M, and K.

Combining all the information, the sequence of the internal peptide can be determined as K-E-W-T-M-V-R. This sequence satisfies the given amino acid analysis and the results from the various treatments, consistent with the information provided.

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Answer:

Inflammation is a process by which your body's white blood cells and the things they make protect you from infection from outside invaders, such as bacteria and viruses.

Explanation:

I got this from my notes, since I am studying it rn. Hope this helped:)

Answer: the pple

Explanation:fjjfjjfjf

Answer:

I did this for my test and had them correct

1. strawberries

2. fish

Explanation:

As per the given scenario, The best source of vitamin C is strawberries, while fish is naturally rich in vitamin B12. The correct option for first blank is B, and for second one is A.

A vitamin is an organic molecule that is an essential micronutrient that an organism requires in small amounts for proper metabolism function.

Fat-soluble vitamins are stored in the liver, fatty tissue, and muscles of the body. Vitamins A, D, E, and K are the four fat-soluble vitamins.

Water-soluble vitamins do not accumulate in the body. Vitamin C and all of the B vitamins are among the nine water-soluble vitamins.

As per the given scenario, The best source of vitamin C is strawberries, while fish is naturally rich in vitamin B12.

Thus, the correct option for first blank is B, and for second one is A.

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The correct answers are: Ferns, Hornworts, Mosses, and Liverworts.

The plants that fit the given description are:

Therefore, the correct answers are: Ferns, Hornworts, Mosses, and Liverworts.

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Flowers shaped for their pollinators, specific camouflaged color patterns of animals, and a beaver's enormous front teeth for gnawing are all examples of adaptation

The modification of an organism to its environment in order to increase its chances of survival is known as evolutionary adaptation, or simply adaptation.

A living thing can modify itself to fit its surroundings. A plant growing at a higher altitude, for instance, might change its metabolism or the types of nutrients it needs to thrive. Another perspective on adaptation is genetic.

An animal's morphological or behavioural characteristics that aid in their better survival in their environment are referred to as adaptations. In other words, an adaptation is something a person does or has on their body that facilitates locating food, water, partners, and shelter.

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Desensitization to prevent an allergic response can be achieved with doses of the antigen.

The small and controlled doses of antigen (allergen) can cause desensitization to said allergy. This is because they allow the body to slowly build up natural defenses to this antigen, allowing it to be better prepared to combat said antigen during the next exposure.

Therefore, we can confirm that desensitization to prevent an allergic response can be achieved with doses of the antigen.

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Answer:

Pollination: Pollen, Fruit, bees, wind, animals

Fertilization: Ovule, ovary, seed, pistil,

Germination:  New plant, ripe, grain

Explanation:

Answer: penis snake

Explanation:

The correct answer is (b) most young women don't have an adequate intake of fruits and vegetables. Folic acid is a synthetic form of folate, which is a B vitamin that is essential for cell growth and development. It is particularly important during pregnancy to prevent birth defects of the brain and spine.

The However, many women of childbearing age do not consume enough folate through their diets alone. Therefore, in 1998, the U.S. Food and Drug Administration (FDA) mandated that all enriched grain products be fortified with folic acid to help ensure that women receive enough of this important nutrient before and during pregnancy. While folate is naturally found in many foods such as leafy greens, fruits, and legumes, it is often lost during food processing. Enriched grain products, such as bread, pasta, and cereal, are a significant source of folic acid in the American diet. The addition of folic acid to these products has been shown to be effective in increasing folate levels in the population and reducing the incidence of neural tube defects in infants. In summary, the addition of folic acid to enriched grain products in the U.S. is an important public health initiative to address the inadequate intake of folate among women of childbearing age.

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Answer:

Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession. Pioneers of secondary successions face quite different conditions from those that accompany primary succession. Secondary successions often start with resource-rich conditions associated with high light availability and reduced competition for nutrients and moisture. Disturbances may also be short-lived; for example, gaps created in forest canopies close as the crowns of surrounding trees expand and as seedlings and saplings in the understory grow up in response to increased light. Pioneers rely on recruitment from propagules present in the soil, or that disperse into the site after disturbance occurs. Pioneers are able to outcompete established vegetation that survived the disturbance by maintaining high juvenile growth rates. Some of the fastest growing trees are pioneers in tropical rain forests. Individuals of the balsa tree Ochroma pyramidale, for example, can grow from seedlings to adults with >30 cm trunk diameter in <10 years.

The difference between pioneer and nonpioneer species is difficult to delineate (Table 1). Attempts to define distinct life-history strategies (implying coordinated evolution of life-history traits) are confounded because key traits such as propagule size and juvenile growth rate can vary over several orders of magnitude within a community and show broad overlap among species with contrasting habitat requirements. Nonetheless, interactions among traits can be used to describe some life-history tradeoffs that largely constrain the habitat requirements of pioneers. For vascular plants, paramount among these is a tradeoff between growth in the sun and survival in the shade (Figure 3). The high growth rates of pioneers are maintained by allocating a large fraction of the plant’s resources to new leaf area production, and by investing in nutrient-rich leaf tissue that can attain high-maximum photosynthetic rates. A consequence of preferential allocation to leaf production is that few resources remain that can be used to defend the plant against herbivores and pathogens, or to recover from physical damage. This results in high mortality, particularly in the shade, where resources needed for tissue replacement are most limiting.

Table 1. Characteristics of pioneer tree species in tropical forests that distinguish them from nonpioneer species

Pioneer speciesNonpioneer species1. Juveniles recruit from seed following disturbance; seedlings are unable to survive beneath a forest canopySeedlings and saplings persist in the shade of a forest canopy2. Seeds germinate in response to cues provided by changes in light, temperature, or soil nitrate concentrations indicating disturbance to canopy vegetationSeeds germinate immediately after dispersal or seasonally during periods favorable for establishment3. Seeds generally small; frequently dispersed by windSeeds may be large; frequently dispersed by vertebrates4. Seeds often persist in the soil (weeks to decades after dispersal)Seeds lack dormancy or remain in the soil for less than a year5. High height growth rate and juvenile mortality rateLower height growth, crowns often show lateral spread in the shade6. High maximal photosynthetic rate, light compensation point, and foliar nutrient concentrationsLow maximal photosynthetic rate, light compensation point, and foliar nutrient concentrations7. Short-lived leaves with high leaf area per unit leaf massLeaves of juvenile plants may persist for several years with low leaf area per unit leaf mass8. Open canopies with sparse branchingClosed canopies9. Low wood densityMedium–high wood density10. Low investment in chemical anti-herbivore defenseHigh investment in chemical and structural defenses11. Often form defensive mutualisms with antsDefensive mutualisms uncommon12. Adult lifespan typically &lt;100 yearsAdult lifespan up to 500 years13. Wide geographic and ecological rangeOften restricted geographic range

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The E. coli bacteria can accept a human gene and then produce a human protein because B. the basic components of DNA are the same in bacteria and humans.

DNA possess important components like nucleotides which can be found in every creature that allows E. coli bacterium to receive a human gene and make a human protein. The genetic code is universal, which means that the same 3 letter codons translates to the same amino acids in all species, from bacteria to humans.

If the human insulin gene is introduced into the DNA of E. coli, the bacteria can read the human DNA code and manufacture the human insulin protein using their own cellular machinery.

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Answer:

1. Fossil evidence

2. Homologous similarities.

3. Molecular evidence

Cell membranes act as boundaries and checkpoints. Because of their semi-permeability, some molecules can diffuse across the lipid bilayer but not others. A membrane that is selectively permeable encloses every cell. This membrane serves as a partition between the internal and external environments in addition to enclosing the cellular organelles.

Is a phospholipid bilayer semi-permeable?

As a result, the phospholipid bilayer serves as a semipermeable membrane that enables cells to maintain their internal monolayers in isolation from the outside world and other cells. The tonicity of the fluid bound by a semipermeable membrane can be used to determine the concentration in relation to the surroundings or other cells.

What is the name for a membrane enclosed?

Organelles are membrane-enclosed spaces found in eukaryotic cells. Like organs in people and other animals, organelles have a specialized purpose for the cell. The Golgi apparatus, mitochondria, and endoplasmic reticulum are examples of organelles.

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An example which shows that new cells are being made include the following below:

This is referred to as the simplest unit of life and undergoes division on the form of meiosis and mitosis to produce new cells.

An egg being fertilized by a sperm and developing into a zygote and a child growing requires the production of new cells and the cell division involved are meiosis and mitosis respectively.

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The primary functions of whales include feeding, reproduction, communication, and migration.

Whales are primarily filter feeders or predators, depending on the species.

Filter-feeding whales, such as baleen whales, have baleen plates in their mouths that allow them to filter out small prey, such as krill or small fish, from large volumes of water.

Predatory whales, such as toothed whales, hunt and feed on various marine organisms, including fish, squid, and marine mammals.

Reproduction is another important function for whales. Most whale species have a gestation period of several months, with females giving birth to a single calf.

The calves are nursed with milk from their mothers and rely on their care for a period of time until they become independent.

Communication is vital for whales, as they rely on vocalizations to communicate with other members of their pod.

Whales produce a variety of sounds, including songs, clicks, and whistles, which serve purposes such as mating, social interactions, and navigation.

Migration is a common behavior observed in many whale species. Whales undertake long-distance migrations, often covering thousands of kilometers, to reach feeding grounds in nutrient-rich waters or to reproduce in specific breeding areas.

These migrations are driven by seasonal changes in food availability and environmental conditions.

In summary, the primary functions of whales encompass feeding, reproduction, communication, and migration, all of which are essential for their survival and successful adaptation to their marine environments.

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The blood was collected in a tube containing EDTA (Ethylenediaminetetraacetic acid) because it is a widely used anticoagulant that prevents blood from clotting. EDTA works by binding to calcium ions in the blood and forming a stable complex, which prevents the calcium ions from participating in the coagulation cascade. This helps to keep the blood in a liquid state and prevents the formation of clots.

In a laboratory setting, it is important to collect blood samples in tubes containing anticoagulants like EDTA to ensure that the samples can be properly analyzed. If the blood were to clot, it would be difficult to obtain accurate measurements of various components of the blood, such as red blood cells, white blood cells, and platelets. By using an anticoagulant like EDTA, researchers can ensure that the blood sample remains in a liquid state and that accurate measurements can be obtained.

In addition to being used in laboratory settings, EDTA is also used in medical settings to prevent clotting in blood samples that are collected for diagnostic testing. This allows healthcare professionals to obtain accurate measurements of various components of the blood, which can help to diagnose and treat a wide range of medical conditions.

In summary, the blood was collected in a tube containing EDTA to prevent clotting and ensure that accurate measurements can be obtained. EDTA is a widely used anticoagulant that works by binding to calcium ions in the blood and preventing them from participating in the coagulation cascade.

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Since photosynthesis predominates during the day, there is a net emission of oxygen. At night, respiration continues even though photosynthesis stops, resulting in a net oxygen consumption.

The rate of photosynthesis will increase as you go from low light intensity to highlight intensity because there is more light available to power the processes of photosynthesis.

The amount of light is also affected by other elements like curtains, trees outside the window, weather, the time of year, shade from nearby structures, and the condition of the windows.

Therefore, Inside a house or business, reflective, light-colored surfaces tend to boost light intensity whereas dark surfaces reduce it.

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