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Damm [24]
3 years ago
6

Nitrogen fixation is carried out mainly by...

Biology
1 answer:
Ghella [55]3 years ago
8 0
I think the answers are 2
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Which statement(s) corresponds to cellular respiration? Choose all that apply.
True [87]
The statements that correspond to cellular respiration are:

2) CO2 diffuses passively out of the cell.
6) O2 is pumped in and forces CO2 out

Cellular respiration in animals produces carbon dioxide as waste products. Cellular respiration is presented like this:

oxygen + glucose → energy + carbon dioxide + water

3 0
3 years ago
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Please, could someone help me with this?
nikitadnepr [17]

1. abortion

2. testing cosmetic products on animals

hope this helps :)

7 0
3 years ago
The pre-teen years occur during the __________ stage, from 9 to 11 years of age.
Lisa [10]
The pre-teen years occur during the juvenile <span>stage, from 9 to 11 years of age.</span>
8 0
3 years ago
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
Which are characteristics of all protists? Select two options.
Andru [333]

Answer:

<h3>The correct answers are :</h3>

<u>(B) They have nuclei </u>

<u>(C) They live in moist environments.</u>

Explanation:

Protists are very diverse group of organism, it contains all the organisms that does not fits into other kingdom. All of the protists are not heterotrophs some of them are autotrophs. They reproduce sexually but some of them reproduce asexually. Example: amoeba: binary fission. Some of the protists are multicellular. Some of them are unicellular too.

3 0
3 years ago
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