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Aleksandr [31]
2 years ago
7

What is a key feature of circulation?

Biology
1 answer:
lubasha [3.4K]2 years ago
6 0

Answer:Nutrition Transport

Explanation:

I got it on edge, i hope this helps!

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Lorico [155]

Answer:

A

Explanation:

Energy cannot be created nor destroyed.

7 0
2 years ago
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Why is the structure of dna called a double helix?
jeka57 [31]
The structure of DNA is called a double helix because DNA is made up of two strands of nucleotides wound together in a spiral. 

DNA has two strands that run opposite of each other and twist together much like a twisted ladder. Each backbone of the ladder is made up of alternating groups of sugar and phosphate groups.  
4 0
3 years ago
What happens to the phosphates when plants and animals die?
andrew-mc [135]

Answer:

When plants and animals die, organic molecules also undergoes decomposition and this causes the incorporated phosphates to go back to the soil or bodies of water.

Explanation:

Phosphates are naturally related to <u>"phosphorus."</u> <em>They play a vital role in the life of animals and plants. </em>Phosphorus can be commonly be found on the earth's land and water (although the land has a smaller amount of it). <u>Plants naturally absorb phosphate from where they're growing. Animals take up phosphates by eating plants.</u> The phosphate that plants get from the soil are considered inorganic. They only become organic when it is incorporated into the plants DNA (since this is an organic molecule).

So, this means that if there's a sufficient amount of phosphate, there will be more plants on earth as it is also important in the process of acquiring nutrients.

When animals and plants die, all of the organic molecules such as phosphate also breaks down and thus, it falls back to the soil or bodies of water. Then, they are ready to enter another Phosphorus cycle.

6 0
3 years ago
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The earth is sometimes described as a giant magnet. True or false?
dybincka [34]
True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."
4 0
2 years ago
At the beginning of cellular respiration, energy is stored in the bonds of _______ molecules. At the end of the cellular respira
nekit [7.7K]

Answer:

C I would say

Explanation:

5 0
3 years ago
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