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allochka39001 [22]
3 years ago
15

Why might it be beneficial to express genes only when they are needed?

Biology
2 answers:
dusya [7]3 years ago
5 0
You only want to express the genes that are necessary. You only need to make the needed proteins, and it also conserves resources.
liraira [26]3 years ago
5 0

Answers:

The cell is much more efficient and better at competing in its environment.

Explanation:

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Which hypothalamic hormone contributes to the regulation of the male reproductive system? a. luteinizing hormone b. gonadotropin
Lostsunrise [7]

Answer:

The correct answer is option b. gonadotropin-releasing hormone.

Explanation:

The GnRH or the gonadotropin-releasing hormone is a releasing hormone that releases from the neurons of the hypothalamus. This releasing hormone is responsible for the secretion of the luteinizing hormone and follicle-stimulating hormone.

GnRH regulates both gonadotropin hormones, in which, LH (luteinizing hormone) responsible for the regulation of the male reproductive system and FSH (follicle-stimulating hormone) responsible for the female reproductive system and sperm production in testes in males.

Thus, the correct answer is option B. gonadotropin-releasing hormone.

3 0
3 years ago
The kingdom, Protista, includes
Mumz [18]
<span>B) 
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7 0
3 years ago
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The use of nuclear energy can have both positive a.d negative consequences. Which of the following is a positive consequences of
stich3 [128]

Answer:

One of the positive consequences of nuclear power plants is that it produces small amounts of air pollution. Comparing it to coal power plants, nuclear reactors has less or no production of air pollution while in operation. It is by far one of the power plants with least contribution to air pollution.

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4 0
3 years ago
How do a dwarf planet and an asteroid differ?
Westkost [7]

Answer:

The answer is D.

Explanation:

because dwarf planets are found in the kuper belt  as well, and A and B are actually just there to trick you. Hope that helped.

5 0
2 years ago
You just came back from a class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and though
joja [24]

Answer:

Option B

Explanation:

Question -

You just came back from class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and thought that you would see if what you learned was accurate. You are sitting directly across from her and ask her to look at the front and back cover of her favorite book. After she did this you asked her to describe "the part of the book I am looking at." What does she tell you?

a) how many pages there are in the book

b) what she sees

c) what you see

d) what the story is about

Solution

As per Piaget's theory of cognitive development, when a child is at the preoperational stage he/she is able to think only at symbolic level and cannot use his/her cognitive thinking.  

He/she is unable to derive senses or meaning associated with symbols and also his/her communication is egocentric which means they cannot think from the perspective of other people.  

Hence, option B is correct

4 0
3 years ago
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