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Pavel [41]
3 years ago
6

Why are birds found in so many different habitats around the world?

Biology
1 answer:
AfilCa [17]3 years ago
5 0
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Part 1: Why is Fresh Water in Short Supply?
shepuryov [24]

Part 1;

Because there is only limited amounts of fresh water on the Earth the rest is salt water; which humans can not survive on as the salt dehydrates our bodies instead of hydrates.

1) The more we try to get the the fresh water the more we will likely make more pollution.

2) The more we use the less there is.

3) Everything needs water.

Part 2; no idea I believe it is the ice caps, as it is fresh water in the ice caps and not a lot of humans up there to pollute the runoff.    

6 0
3 years ago
Whcih element is the most important?
kirill115 [55]
There are 6 elements that are the most important. The acronym, CHNOPS, is an easy way to remember these.
C - Carbon
H - Hydrogen
N - Nitrogen
O - Oxygen
P - Phosphorous 
S - Sulfur
4 0
3 years ago
Explain what might happen if the chloroplasts in a cell are not working.
marishachu [46]

Answer:

The plant cell will not produce chloroplasts, and the plant will not be green any more.

Explanation:

Hope this helps!!

8 0
2 years ago
PLEASE HELP ME!
arsen [322]

You got this from edg, am I correct. Well he had evidence by drawing and saw the differences between between normal finches to to the ones of Galapagos island. There were 4 different finches, two had a thick beak and two others had thin beak for small wholes where insects might be hiding. He observed the differences between the beaks.

Explanation:

3 0
3 years ago
DNA within the cell is wrapped around nucleosomes to form chromatin. When chromatin is in the form of a 30 nm fibril, how many c
vodomira [7]

Answer:

The correct answer is option b. "20 H1, 40 H2A".

Explanation:

Chromatin is a complex that protects and condenses the genetic material comprised of DNA and proteins. When chromatin is in the form of a 30 nm fibril, nucleosomes have a regular positioning along the DNA. This means that each nucleosome is associated with a single H1 molecule. Therefore a chromatin containing 20 nucleosomes will have 20 copies of H1 and 40 copies of H2A, because each nucleosome has 2 copies of the core histone H2A.

8 0
3 years ago
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