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Usimov [2.4K]
4 years ago
9

How to solve this please

Biology
1 answer:
KATRIN_1 [288]4 years ago
8 0
3. Oxygen
7.heliom
2.soil
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Digiron [165]

Answer: 3. A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels.

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​a region of dna that contains instructions for the amino acid sequence of a particular protein is called a(n) ____.
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In _________, a small sample of fetal cells is drawn by a needle inserted into the amniotic fluid surrounding the fetus. It prov
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the prenatal procedure  

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3 years ago
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Molly stated that she will be the best singer because her mother is a music teacher.
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4 years ago
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How long is a rat's large intestine and small intestine in cm? and why is one bigger than the other?
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