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MAXImum [283]
2 years ago
7

Why does a submarine rise when its volume is increased? a. Because it now weighs less c. Because it fills with air b. Because it

s density is now lower than the water around it d. Because it is less buoyant when it is larger Please select the best answer from the choices provided A B C D
Biology
1 answer:
Lunna [17]2 years ago
5 0

Answer:

A

Explanation:

A

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Which describes the greenhouse effect? an artificial process a dangerous process a natural process a new process
Yuri [45]
The answer would be a dangerous process, this is because the greenhouse effect traps gasses such as CO2 and other harmful gasses emitted from the Earth, that can ultimately lead to problems in the future.

The greenhouse effect is also the reasoning behind why scientist believes in Global warming and climate change. 

Plus, the greenhouse effect is neither natural, new, nor artificial.
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3 years ago
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For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to
Reptile [31]

Answer: E. Amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between DNA and proteins.

Explanation:

The Hershey-Chase experiment, is an experiment that demonstrated that the genetic material of phage isn't protein but rather it's DNA.

Based on the information given in the question, the experiment will not work because amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between DNA and proteins.

Therefore, the correct option is E.

4 0
3 years ago
The earliest organisms were completely heterotrophic in nature. Why?
bearhunter [10]
The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. <span>A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth. </span>
5 0
3 years ago
Why are substances able to diffuse through the capillaries?
Stels [109]
Capillaries are made up of very thin and flat tissues that are spread across the body. Substances are able to diffuse through the capillaries because of the presence of blood. Particularly, the red blood cells that make-up blood within the body. These cells have the ability to carry oxygen, carbon dioxide, glucose, and water to pass through the capillaries. 
7 0
2 years ago
Every species has a 2-part name representing its ___ and ___
Sonbull [250]

Answer: genus,  specific epithet.

Explanation:

The first part is the genus, it's always capitalized, while the second half is always in <em>italics </em>

e.g.<em> </em>Homo<em> sapiens </em>

4 0
3 years ago
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