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notsponge [240]
3 years ago
7

Who proposed that all of the present continents were once joined together in a single supercontinent called Pangaea? Select one:

a. Alfred Wegener b. Charles Darwin c. Arthur Holmes d. Harry Hess
Biology
1 answer:
disa [49]3 years ago
5 0

Answer:

Alfred Wegener

Explanation:

In 1915, Alfred Wegener, a German geophysicist and meteorologist first developed the concept Pangea. He proposed that the present continents were once fully assembled together about 175 million years ago before it began to break apart. It is believed that a supercontinent existed during the late Paleozoic and early Mesozoic eras. It is also believed that the formation and breakage of the supercontinent have been cyclical through Earth's history.

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liberstina [14]

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The correct answer is - C. Plants.

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As we know and also given that the pond is usually smaller and shallower than a lake. Due to this reason, ponds have plants growing on the bottom of them from one side to the other as they get enough light as there is only the photic zone in ponds.

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How do phagocytes fight pathogenicmicrobes?
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From the protein hydrolysis cycle, the missing words are;

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<h3>What is protein hydrolysis?</h3>


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brainly.com/question/7175239
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4 0
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Energy used by the body to perform muscular contractions is called adenosine diphosphate, or ADP.
Bezzdna [24]

Answer:

The energy used for muscular cont ration is ATP(adenosine triphosphate) This is the energy currency produced in the mitochondrial during cellular respiration.

During muscles contraction.The ATPs is broken down to ADP and Pi.

This is the breakdown of energy rich bonds binding phosphate ions with ATP.The breakdown of the bonds produced -32kJper the 3 bonds in ATP. Therefore as each bond is broken, energy is produced for muscle contraction

It is an exergonic reaction with production of heat.

Thus ATP is used for muscle contraction.ADP is the intermediate of ATP when one Phosphate is removed during the breakdown.

Thus the sequence is Adenosine triphosphate (3 phosphate) to Adenosine diphosphate(2 phosphate) to Adenosine monophosphate (1 phosphate)

Each bond breakin gives equal energy of -32kJpermol.

Explanation:

Explanation:

3 0
3 years ago
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