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kicyunya [14]
3 years ago
6

Need help asap - 20 points included it’s a quiz !

Biology
1 answer:
mixer [17]3 years ago
8 0
I believe it’s the first one
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Animals release carbon dioxide into the air, and plants take it in.

Explanation:

The existence of plants and animals on the planet is important in maintaining life. Animals release carbon dioxide as waste through the respiratory system. The carbon dioxide that is released is then taken in by plants, which they use to produce their own food through a process called photosynthesis. The by product of that process is oxygen which is released in the atmosphere and animals take it in.

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What will a heterozygote show when two alleles are codominant?
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4 ) Farmers using different chemical substances in high amount in the crops .

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This was my way to answer the question , if you need then you can write in paragraph .

let me know if its incorrect . :-)

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