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Nuetrik [128]
2 years ago
13

1.

Biology
1 answer:
vredina [299]2 years ago
7 0

Answer:

A.

Explanation:

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During meiosis, homologous chromosomes exchange genetic material. This exchange of genetic material —
pantera1 [17]

Answer:

Crossing over

Explanation:

This exchange of genetic material is called chromosomal crossover, or crossing over.

4 0
3 years ago
A scientist observed a bactirial specimen obtained from mud in a swamp. The bacteria are producing hydrogen sulfide which create
emmainna [20.7K]

<u>Answer:</u>

<em>Reduction of sulfur compounds and the release of hydrogen sulfide is happening here.</em>

<u>Explanation:</u>

Sulfur is an important element in the sulfur cycle. Sulfur compounds can be found on earth in various forms. They can be found in mineral rocks and organic matter. It is the <em>work of bacteria to reduce sulfur</em> compounds and convert them to sulfides.

There are different types of bacteria that reduce various sulfur containing compounds. They are <em>sulfate-reducing bacteria, sulfur-reducing bacteria, sulfite reducing bacteria etc.</em>  In a swamp there is  low oxygen availability and organic matter decays in this condition.

<em>The sulfate reducing bacteria oxidizes the organic matter  and releases Hydrogen sulfide.</em>

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Energy can be classified into..
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B is correct! Renewable and non
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Most of the fish in a lake produce a certain number of eggs each spring. However, one fish has the ability to carry and lay more
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