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Rudik [331]
3 years ago
12

5. Why are index fossils useful in dating rock layers?

Biology
1 answer:
mr Goodwill [35]3 years ago
8 0

Answer:

Fossils are used to determine the ages of rock layers.Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time. An index fossil allows a scientist to determine the age of the rock it is in.

Explanation:

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Answer:

The correct answer will be- light independent reaction or Calvin cycle

Explanation:

The process of photosynthesis takes place in the two phases: light-dependent and light-independent phase.

The light-dependent phase form NADPH  and NADPH which are utilized during the light-independent phase to synthesise glucose molecule.

The light-independent phase occurs in the cytosol or stroma of the chloroplast in dark conditions which help synthesize the glucose molecules. The light-independent reaction is also known as the Calvin cycle which forms the glucose molecules in three steps- carboxylation, reduction and regeneration.

Thus, the Calvin cycle is the correct answer.

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Explanation:

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Answer:

The plant which I think it says clover i can see

Explanation:

plants are primary sources of energy because it makes it own food and doesn't take form other animals.

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Doss [256]

Answer:

The catalyst decreases the activation energy needed

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Fifty years ago, there were several hundred varieties of wheat grown in the Middle East. Now a few of the more modern high respo
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