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vladimir2022 [97]
3 years ago
12

Someone help me please I’ll make brainlist!! Quick fast

Biology
1 answer:
yulyashka [42]3 years ago
4 0

Answer:

I think this is 2 because there would have been bigger predators in the ocean vs. a lake

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High-and-Low air presure areas leading to air movement happens when there are differences in which factor???
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When there is density it controls the high and low pressure the answer is A
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4 years ago
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3) Two students decided to repeat the Hershey and Chase experiment, with modifications for a science competition. They radioacti
nlexa [21]

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Explanation:

In the Hershey and Chase experiment, they aimed to show where the phage DNA went when it exited the protein coat and entered the bacteria. In this scenario, the two student's approach won't work because amino acids (and therefore all proteins) also have nitrogen atoms which ultimately means that the radioactivity would not distinguish between DNA and proteins and the experiment will not provide the correct results.

6 0
3 years ago
In 1665, robert hooke examined a thin slice of cork using a simple microscope. Hooke observed tiny box-like cavities that were e
Setler [38]

Robert Hooke observed the thin slice of cork cells present in the plant cells. In 1665, Robert Hooke referred these empty tiny box-like cavities as cork cells.

<h3>What is Robert Hooke's Observation?</h3>

In 1665, Robert Hooke used a microscope to examine a tiny box-like empty cavities which are referred to as cork cells. He observed that the cork was made up of tiny units that looked like a honeycomb. He referred to them as cells, and he was the first to find a dead cell. This observation has a major contribution in the cell theory.

Hooke published his results under the title Micrographia, about his microscopic observations on several plant tissues. He is remembered as the coiner of the word “cell,” referring to the cavities he observed in thin slices of cork. The cork cells protect the tree from bacterial or fungal infection. It prevents water loss through the bark.

Learn more about Cells here:

brainly.com/question/3142913

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7 0
1 year ago
How does an insect species become resistant to an insecticide?
Ivenika [448]

Answer:

I believe you just answered it yourself. they development an immunity to insecticides the more they are exposed to it.

8 0
3 years ago
Many bacteria, including E. coli, are capable of growing under both anaerobic and aerobic conditions. Some mutations are introdu
Sloan [31]

Answer:

Due to inability to survive in aerobic condition.

Explanation:

The strain dies when exposed to a normal laboratory atmosphere instead of nitrogen gas atmosphere because the mutation causes change in the capability of the strain to survive in the aerobic conditions. This mutation inactivate several enzymes which is also responsible for their capabilities of surviving under both anaerobic and aerobic environment so that's why the strain dies when exposed to normal atmosphere..

5 0
3 years ago
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