Cells undergo differentiation during embyonic development. An individual skin cell develops differently from a muscle cell because Question 7 options: the cells have different DNA. The cells have different genes. The cells express different genes. The cells have different chromosomes.

Answers

Answer 1

Answer:

Hello!

Answer:

Option 3: the cells express different genes.

Explanation:

While all cells contain the same genes (the DNA does not change based on cell function), cells can choose to express different genes during the differentiation process so they become specialized for different functions.

In this case, skin cells may begin to develop with high concentrations of strengthening proteins such as keratin and collagen, in order to carry out their main functions e.g. to act as a strong barrier against parasites, bacteria, etc.

Whereas muscle cells may have less of these proteins because their function is different, and instead may focus on developing more mitochondria to provide energy to carry out their main jobs (movement).

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Which statement about endotherms and ectotherms is correct?1. Endotherms are regulators while ectotherms are conformers
2. Endotherms have higher energetic demands compared to ectotherms.
3. Endotherms spend more energy on internal temperature regulation compared to ectotherms.
4. Endothermy is more common among animal phyla than ectothermy.
5. At the cellular level, endotherms cells always produce more ATP and more heat.

Answers

Answer:

3. Endotherms spend more energy on internal temperature regulation compared to ectotherms.

Explanation:

Ectotherms, are considered as cold-blooded animals (reptiles and amphibians), and are organisms that don't have the ability to generate enough heat to keep themselves warm. Endotherms, in contrast, do possess the ability to generate their own body heat.

Endotherms also called warm blooded animals (mammals) have the ability to regulate their body temperature by themselves. If the endotherms are in a cold place their body increases the metabolism and generates more heat. This will compensate for the cold outside.

What is variation among members of different species called?

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Answer:

I think inter-specific variation.

Explanation:

Different phenotype? I think

One of the newest applications of cell technology is called cybrid embryos. This process involves replacing the nuclear material of an animal cell with human nuclear material. How might this process affect public policies about research by using stem cells?

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In this type of research, human nuclear materials are used therefore it shall apply the same policies and concerns about the use of human embryonic stem cells (hESC).

Many scientists are frustrated because their work has been at a standstill due to laws about stem cell research. Some of these laws ban the use of such application like the Dickey Amendment.

Answer: A. The same policies and concerns about the use of human embryonic stem cells would most likely apply.

Explanation:

PLS ANSWER THIS ASAP!!!!Like in your skin, dermal tissue in plants have important functions. Check all that are true.

A) Protection form pathogens (viruses, bacteria, fungi infections)

B) Sending electrical, sensory impulses to the plant's brain

C) Preventing water loss

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Answer:

a and c

Explanation:

A static character _____.has only one or two developed traits
is not influenced by events around him
changes, or grows, according to the occurrence in his life

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A static character is not influenced by events around him. It is the second main type of the character in the story that does not change and stays the same from the beginning until the end. It is the exact opposite of a dynamic characters, someone that changes based on the events and the circumstances of the story. The actions and even the decisions made by a static character stays true to its personality from the start until the story draws to a close.

If a person is having a problem with balance, what part of the brain would most likely be the cause?

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I reckon it's the cerebellum.

Other Questions

Photosynthetic autotrophs are organisms that use light energy and carbon dioxide to make sugar and oxygen. Aerobic heterotrophs, on the other hand, are organisms that use oxygen and organic carbon for energy, and release carbon dioxide as a waste product. Earth's early atmosphere contained very little free oxygen.Based on the information above, which of the following is most likely true?

Which of the following statements is true? Bones protect internal organs and help the body move. Bones are connected to each other by tendons. The knee is an example of a fixed joint. Muscles that bend a joint are extensors, and those that straighten a joint are flexors.

What is the role of sensory neurons in the breakdown of food?

Sponges have no nerve tissue or sense organs.explain why this means that sponges have no cephalisation.