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Arturiano [62]
3 years ago
15

What directs the changes that occur in allele frequency

Biology
1 answer:
dangina [55]3 years ago
6 0

Answer:

I think it's b - random mutations... >3

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My doctor told me that birth control pills contain small amounts of estrogen and progesterone, and these hormones prevent me fro
german
Ok... This is a bit complicated but bear with me. In a female's body Estrogen and Progesterone are two of the major used to maintain the menstruation cycle. Gonadotrophic substances are an entirely different topic with it being the hormones FSH and LH (These hormones are released while an egg is in development in the ovaries). 

Without going into even deeper specifics. Estrogen is used by the body signal to ovulate, as well as thicken the uterine walls... Progesterone is used to maintain the uterine walls "after" the egg is fertilized. What the pill is suppose to do is actually force a premature ovulation, which is why there is estrogen. The Progesterone's job as is maintain the uterine wall's endometrium to a low level and helps keep blood loss from a period at a minimum. 

If you need clarification please feel free to question.   
8 0
3 years ago
THIS IS FOR A PHYSIOLOGY CLASS DON'T DELETE ME AGAIN PLEASE.
8090 [49]

Be yourself

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6 0
4 years ago
Which three structures are found in both prokaryotic and eukaryotic cells?
Lana71 [14]

Answer:

Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.

Explanation:

5 0
3 years ago
What type of cells, sex cells or somatic cells ,are produced by this process
pogonyaev

Answer:

Human sex cells are produced by a two-part cell division process called meiosis.

Explanation:

Through a sequence of steps, the replicated genetic material in a parent cell is distributed among four daughter cells. Meiosis produces gametes with one-half the number of chromosomes as the parent cell

3 0
3 years ago
The diagram above represents 4 organisms. How many of the organisms represented are multicellular??
rodikova [14]
I believe it is C) 3
3 0
4 years ago
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