BIOLOGY MIDDLE SCHOOL

PLEASE CHECK MY ANSWER!!!!!!What is the result at the end of meiosis II?

A.
two haploid cells

B.
four haploid cells

C.
two diploid cells

D.
four diploid cells

I think it's B.

Answers

Answer 1
Answer: The answer is B. four haploid cells. In the meiosis, the number of chromosomes is reduced by half. It consists of meiosis I and II. In meiosis I, 2 haploid cells are formed from a diploid mother cell. These 2 haploid cells undergo meiosis II which is similar to mitosis. As the result of meiosis II, 2 haploid cells form from each haploid mother cell. Therefore, as the result of meiosis, 4 haploid cells are formed.

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A farmer chooses to breed the cows that produce the most milk rather than the cows that produce less milk. This is an example of A. uniformitarianism and biogeography.
B. artificial selection.
C. natural selection.
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Answers

The answer is B. artificial selection. Artificial selection is . a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only  forms that have certain desirable inheritable characteristics (such as, in this case, cows that produce the most milk).
B. Artificial selection

If your lac operon looked like the image below, which of the following can you infer?You had cereal and milk for breakfast.
Your lac operon is expressed.
You have not consumed lactose from dairy recently,
None of the above.

Answers

Answer:

You have not consumed lactose from dairy recently

Explanation:

According to the diagram, there is a represssor element in the regulatory region of the operon. This repressor is blocking the RNA polymerase, that is bound to its promoter region upstream of the genes, from transcription. The repressor is mostly the lac repressor that switches of the operon in the absence of lactose.

What is the energy source that powers plate movement? a. magma and lavab. earths magnetic field
c. the sun
d. earths hot interior

pls help

Answers

the correct answer is c

Answer:

the answer is D

Explanation:

Mr. Jones, the science teacher, tells his students that energy cannot be created; it must be captured from the environment. He is talking about the what. A: food chain
B: second law of thermodynamics
C: first law of thermodynamics
D: food web

Answers

A: food chain

In many functions of a living organism, it cannot make its own energy. It uses energy from its environment, retrieves and converts into a usable and edible matter. Organisms that can do this process is the autotrophs, they can facilitate photosynthesis which they gather energy from the sun, water and carbon dioxide in order to create energy by then, the transfer of this energy to other organism is played by the food chain –food web. 

The question here is one after a lesson discussing the laws of thermodynamics. Within this lesson, you may find the fallowing passage: "According to the first law, an organism can absorb energy from its environment, or it can give up some of its energy to its surroundings. However, the total energy of the organism and its surroundings is always the same. The organism can't create the energy it needs to live. Instead, it must capture it from the environment. Once it captures energy, the organism can use the energy for its own biological work."

Answer: First Law of Thermodynamics

What happens inside chloroplasts? Responses:A,) Light energy is converted into glucose
B.)Plant cell protection
C.) Animal development
D.) Glucose is converted to ATP

Answers

Answer:

A

Explanation:

Photosynthesis happens inside chloroplasts

A ) light energy is converted into glucose

This is an involuntary, non-striated muscle found throughout the human body.​

Answers

Answer: Smooth muscle

Explanation:

I got it wrong on usatestprep and when it showed me the answer key, smooth muscle was the correct answer.
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