Why are advantage traits more likely to be passed onto offspring? ​​​​​​​
Because they are more likely to survive and reproduce


Because they come from recessive genes


Because they come from dominant genes


Because the traits is an acquired phenotype

Answer:

d.

Explanation:

primary consumers eat primary producers (plants)

not C because kestrel is a bird that eats more than just plants

Answer: Food Chain

Explanation:

I took the test

Food chain describes this flow of energy. Therefore, option (D) is correct.

A food chain is a sequence of organisms where each organism is the source of food for the next in line. It is a linear arrangement of organisms, starting with a producer at the base and ending with a top predator. The producer is usually a plant or algae that produces its food through photosynthesis.

The primary consumer is the herbivore that eats the producer, followed by a secondary consumer that eats the herbivore, and so on. At the top of the food chain is the apex predator that feeds on other predators or consumers. Energy and nutrients flow through the food chain, with energy decreasing as you move up the levels due to energy loss at each level. A food chain is a simplified model of the complex interactions in an ecosystem, and changes in one level can have cascading effects on the entire system.

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Plant Developmental Biology encompasses the study of how complex multicellular plants are developed from a single zygotic cell.

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Answer:

B because when you have gravity and earth it pushes down on the earth!

Explanation:

Answer:

The physical environment is where individuals live, learn, work, and play. People interact with their physical environment through the air they breathe, water they drink, houses they live in, and the transportation they access to travel to work and school. ... Clean air and safe water are necessary for good health.

Answer:

Due to increase or decrease in the concentration of carbohydrates have no effect on protein concentration.

Explanation:

A diet having 90% carbohydrates support the same amount of protein in the human body as a diet that is only 15% carbohydrates because with the increase or decrease of carbohydrates in the diet does not increase the amount of protein. Protein and carbohydrates are two different things, proteins broken down into amino acid that is utilize by the body for making muscles while carbohydrates are broken down into glucose that is used by the body for performing daily activities.

90% carbohydrates support the same amount of protein in the human body as a diet that is only 15% carbohydrates as it helps to balance the amount of carbohydrates and protein needed for the body to perform its activities.

Both carbohydrates and proteins have a vital role in good health. Proteins in our body help to maintain healthy skin, bones, hair and muscles. Carbohydrates give energy to our body parts like the brain, kidney and heart to function properly.

If your diet has only 15% of carbohydrates, then the body will take any measure to get the energy it required for the proper functioning of body parts. The body tries to break down the proteins (that you eat)chemically until it act like carbohydrates.

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Explanation Worked out

Answer:

D is the answer

Explanation:

Hydraulic facturing, aka fracking, uses toxic chemicals above some regulations which may lead to a leak into water supplies and therefore contaminate it.

It has not much to do with coal, more to do with oil and natural gases

Because of fracking now making it accessible to reach sources in vast number that were previously unacessible, it leads to decreases in gas prices

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Answer:

One reason cells age is because every time they divide, they lose a little bit of DNA from the ends of their chromosomes. This eventually leads to a loss of important DNA, and they die. The solution to this problem is the telomere.

Explanation:

Different types of cells have different lifespans because it depends on the differences in the cellular metabolic rate of the body.

A cell may be defined as the basic structural and functional unit of life in living organisms. It controls and coordinates all the processes which are required for the proper development and maintenance of the body.

One reason behind the unequal life span of the cell is that cells undergo division multiple times in their life, where they lose a little bit of DNA from the ends of their chromosomes.

Ultimately this leads to complete loss of DNA and other factors and eventually, death occurs.

It may be estimated that neutrophil cells might last for only two days, while the cells in the middle of your eye lenses will last for your entire life.

Therefore, it is well described above.

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Answer:

B. Most aquatic animal bites result from an animal's defensive response to a perceived threat or, on rare occasions, from a case of mistaken identify.

Explanation:

Answer:

I think it's the third option

Explanation:

Your mass and weight is the same everywhere in the universe. :)

Arterioles play a crucial role in the skin when a person is very cold. Arterioles are the tiny blood vessels that regulate blood flow from the arteries to the capillaries and finally to the veins. When a person is very cold, arterioles in the skin constrict, a process known as vasoconstriction, to prevent heat loss.

This constriction reduces the amount of blood that flows through the skin, reducing the skin's temperature. The skin also appears pale during vasoconstriction since less blood is flowing to the skin's surface. The constriction of arterioles helps to conserve heat and prevent heat loss from the skin.

Conversely, when a person's skin is warmed, the arterioles dilate, a process known as vasodilation, allowing more blood to flow through the skin, increasing the skin's temperature and causing the skin to appear red. The dilatation of arterioles helps to dissipate heat and regulate body temperature.

Thus, the regulation of blood flow through arterioles is crucial in regulating the body temperature and preventing heat loss.

In conclusion, arterioles in the skin play a vital role in regulating body temperature by constricting and dilating to control blood flow through the skin.

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Answer:

1. Cell; organ

2. Cells

3. Element

4. Protein

5. False

6. Organ system

Explanation:

Answer: Flexion

Explanation:A muscle that crosses on the anterior side of a joint produces flexion. A muscle that crosses on the posterior side of a joint produces extension.

Answer: Flexion

Explanation:

It is not possible to determine which objective was used based solely on the total magnification of 400x. The total magnification of a compound light microscope is calculated by multiplying the magnification of the objective lens by the magnification of the eyepiece lens.

For example, if a microscope has an objective lens with a magnification of 40x and an eyepiece lens with a magnification of 10x, the total magnification would be 400x (40x magnification x 10x magnification = 400x total magnification).

Therefore, the total magnification of 400x could have been achieved using different combinations of objective lenses and eyepiece lenses. For instance, a 4x objective lens with a 100x eyepiece lens or a 10x objective lens with a 40x eyepiece lens would both produce a total magnification of 400x.

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10.5% chromium

less than 1.2% carbon

Medulla oblongata does not play a role in visual reflexes.

Medulla oblongata is the lowest part of the brain and brainstem . The medulla oblongata is linked up to the midbrain by pons.

The medulla oblongata function well in the regulation of autonomic nervous system, such as respiration, cardiac function, vasodilation, and some reflexes actions like vomiting, sneezing coughing and so on.

Therefore, Medulla oblongata does not play a role in visual reflexes.

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Transcription and translation are more prolonged in eukaryotic cells.

Transcription is the synthesis of RNA from a DNA template where the code in the DNA is converted into a complementary RNA code. Translation is the synthesis of a protein from an mRNA template where the code in the mRNA is converted into an amino acid sequence in a protein.

Moreover, the primary difference between translation and transcription is that translation involves converting material into another language, while transcription involves only the source language. Additionally, translation is often far more complex than transcription.

Therefore, transcription and translation are the two processes that convert a sequence of nucleotides from DNA into a sequence of amino acids to build the desired protein. These two processes are essential for life. They are found in all organisms – eukaryotic and prokaryotic.

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Explanation:

New stars are not being created in it

Cloning eukaryotic genes in bacteria for protein production requires the removal of introns, which is done by producing complementary DNA (cDNA) copies from the mRNA using retrovirus reverse transcriptase.

Cloning eukaryotic genes in bacteria involves the transfer of a specific gene from a eukaryotic organism into a bacterial host for the purpose of producing a desired protein. One of the challenges in cloning eukaryotic genes is the presence of introns, which are non-coding regions within the gene sequence.

In eukaryotic organisms, genes are composed of both coding regions (exons) and non-coding regions (introns). However, bacteria lack the necessary machinery to process and remove introns. Therefore, before cloning a eukaryotic gene in bacteria, the introns need to be removed to obtain a functional gene sequence that can be efficiently transcribed and translated in the bacterial host.

To achieve this, researchers use a technique called reverse transcription to synthesize complementary DNA (cDNA) from the mature mRNA molecule. Reverse transcription involves the use of an enzyme called retrovirus reverse transcriptase, which catalyzes the synthesis of a single-stranded cDNA molecule using the mRNA as a template.

The cDNA molecule lacks introns and contains only the exonic regions of the gene. Once the cDNA is synthesized, it can be inserted into a suitable cloning vector and introduced into bacteria for replication and protein production.

In summary, cloning eukaryotic genes in bacteria for protein production requires the removal of introns, which is accomplished by producing complementary DNA (cDNA) copies from the mRNA using retrovirus reverse transcriptase. This allows for the generation of a functional gene sequence devoid of introns, which can be efficiently expressed in the bacterial host.

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The correct answer to this question is lacteals, they are villi of the small intestine are specialized lymphatic capillaries that carry lipids into the circulation.

Villi, which are finger-like structures , cover the mucosa that borders the small intestine. In the heart of each villus are lacteals, specialized lymph capillaries that are blood capillaries. The majority of nutrients are absorbed via blood capillaries, while lacteals are responsible for absorbing lipids and fat-soluble vitamins. Because of the high fat content in it, the lymph in lacteals is known as chyle and has a milky look. Specialized lymphatic capillaries called lacteals on the villi of the small intestine transport lipids into the bloodstream.

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The west coast is considered the active margin where earthquakes, volcanoes, and mountains are formed whereas the Eastern Seaboard is a passive margin.

Continental margins commonly fall into two classes: "active" and "passive." The West Coast of the United States is an active margin that is distinguished by rugged coastlines with narrow beaches and steep sea cliffs. The continental margin of western North America is close to a set of plate boundaries. There are convergent boundaries, like where there is diminution off of the Pacific Northwest. There is a transform boundary that is present in the San Andreas Fault. The “Pacific Ocean” is marked by the active continental margins which are mainly the narrow tectonically active areas related to the volcanoes,

So we can conclude that a continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters.

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Answer:

A = 4000 years

Explanation:

Given data:

Half life = 2000 years

Total mass = 100 g

Mass remain = 25 g

Time taken to reduces to 25 g = ?

Solution:

At time zero = 100 g

At first half life = 100 g/2 = 50 g

At 2nd half life = 50 g / 2 = 25 g

Time taken:

Half life = Time elapsed / number of half lives

2000 years = Time elapsed / 2

Time elapsed = 2000 years × 2

Time elapsed = 4000 years

The correct answer is option d, 12 CO2 molecules have to enter the Calvin cycle to produce one molecule of the monomer that is polymerized into the plant polysaccharide cellulose.

The CO2 molecules that must enter the Calvin cycle to produce one molecule of the monomer that is polymerized into the plant polysaccharide cellulose is 12. It is because CO2 molecules combine with Ribulose bisphosphate in the presence of Ribulose bisphosphate carboxylase (RuBisCO) to form 12 molecules of 3-phosphoglyceric acid (3PGA).This process is also known as carbon fixation or carbon assimilation. The Calvin cycle then processes 3PGA to produce glyceraldehyde-3-phosphate (G3P), which is used to synthesize glucose, fructose, or other sugars.

The polymerization of glucose molecules leads to the formation of cellulose, which is a structural polysaccharide found in plant cell walls.The Calvin cycle is a series of chemical reactions that occur in the chloroplasts of photosynthetic organisms. It is also known as the C3 cycle or the light-independent reactions. The Calvin cycle is responsible for the conversion of carbon dioxide into organic compounds that can be used by plants and other organisms.Thus the correct option is D.

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