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Vera_Pavlovna [14]
3 years ago
7

Which best defines nitrogen fixation?

Biology
2 answers:
Neko [114]3 years ago
8 0

Answer:

A

Explanation:

I just know its a that's all

Doss [256]3 years ago
6 0
Pls mark me brainliest. The breakdown of nitrogen in the soil
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Definition of Thingmotropism
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To study osmosis, a student placed a thin potato slice in a salt solution. The slice became soft and shriveled. Then, he placed
mezya [45]
Osmosis is the movement of <em>water </em>from a region of higher water concentration to a region of lower water concentration across a selectively permeable membrane. Simply put, water passes across membranes into areas where more 'stuff' is dissolved.
In this system, The slice shriveled in salt solution. That means water left the potato's cells. Then the slice regained its shape when placed in pure water. That means water moved back into the cell. 
A) <em>incorrect</em>. Salt does not move across the membrane
B) <em>incorrect</em>. If water moved into the slice, it would have swelled, not shriveled
C) correct. Water moved out of the cell into the more concentrated salt solution
D)<em>incorrect</em>. Placing the slice in pure water does not balance the concentration of salt between the cells and the water.<em />
8 0
3 years ago
Read 2 more answers
Why is it important that the phospholipid bilayer be both hydrophobic and hydrophilic?
SpyIntel [72]

Answer:

The answer to your question is:  The second option is correct.

Explanation:

Pospholipid bilayer is a thin lipid layer that protects and isolate the cell from the enviroment, also it controls the the entrance of molecules to the cell  and ejects wastes. So it is extremely important.

it is not important    This could not be the right answer, bilater is very important.

to maintain a proper internal environment  I think this is the right answer because among others, membranes mantain a proper internal environment.

to link cells together This option is incorrect, because membranes do not link   cells.

4 0
3 years ago
Please help I really would appreciate it
vekshin1

Answer:

Light, electric

Explanation:

4 0
3 years ago
On Christmas morning, 3-year-old Billy opens a gift from his mother and finds a new sweater. Disappointed that it is not a toy,
maw [93]

Answer: egocentric thought

Explanation:

he is only thinking of his self

7 0
3 years ago
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