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Elden [556K]
2 years ago
6

The image shows rock strata from three different regions on Earth. Identify all the layers that contain an index fossil

Biology
1 answer:
FrozenT [24]2 years ago
7 0

The correct answer is: Layer 1, layer 2, and layer 4 in all three regions.

The index fossils are fossils that are commonly used for identifying a geological period of time, and these fossils are also very wide spread, as well as having a rapid evolutionary trends.

By this picture, we can easily see that even though we have rock strata from different regions, the same layers contain the same fossil, and it is a fossil that also is rapidly evolving so has a minor change in each layer.

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The following factors will decrease the amount of oxygen discharged by hemoglobin to peripheral tissues.

A) decreased temperature

B) increased pH

C) decreased amounts of DPG

D) increased tissue PO2

How oxygen is being transported?

About 97% of the oxygen used during breathing is delivered by red blood cells in the blood, while the remaining 3% dissolves in plasma. The pigment hemoglobin, which is found in RBCs, is what gives blood its red color. According to the partial pressures of oxygen, carbon dioxide, H+ concentration, and temperature, oxygen attaches to hemoglobin to create oxyhemoglobin. Up to 4 oxygen molecules can be carried by a single hemoglobin molecule. The optimum circumstances for the synthesis of oxyhemoglobin include low temperature, high H+ concentration, and oxygen partial pressure. In the alveoli, these criteria are satisfied. But in the tissues, the circumstances are different, and as a result, oxygen is separated from oxyhemoglobin.

To know more about the transport of oxygen visit:

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6 0
1 year ago
What are macronutrients
Virty [35]
<span>a substance required in relatively larger amounts by living organisms</span>
5 0
3 years ago
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Vitek1552 [10]

Answer:

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Explanation:

Minerals are not organic compounds, and carbs and lipids do not repair/grow cells (lipids are primarily used to store energy and insulate/protect the body and carbs provide a short boost of energy).

4 0
2 years ago
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What are the 5 steps in protein synthesis?
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Answer:

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(c) Initiation of polypeptide chain

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3 0
3 years ago
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A segmented viral genome
Fynjy0 [20]
<h2>The correct option is (C)</h2>

Explanation:

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4 0
3 years ago
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