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SOVA2 [1]
3 years ago
6

What are some characteristics of scientific questions ?

Biology
1 answer:
EleoNora [17]3 years ago
6 0

Answer: the question must be testable and backed by science and it has logic and their is a deeper scope for experimenting

Explanation:

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Hi!

The answer is B) it should be repeated by other scientists.

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In human blood, there is a compound inside the RBCs called haemoglobin which ensures that the muscle will receive enough oxygen during exercise.

<h3><u>Explanation:</u></h3>

In human blood, the red blood corpuscles contain the haemoglobin. Haemoglobin is a iron chelated compound containing porphyrin ring and a globin tail which can establish co-ordinate covalent bond with both oxygen and carbon dioxide. The bonding element depends on the concentration of these two gases. In lungs, where the oxygen concentration is more than carbon dioxide, the haemoglobin bonds with oxygen and brings it to the tissues where carbon dioxide concentration is more. This makes the haemoglobin to release oxygen and bond with carbon dioxide which is brought back to lungs. This is the process by which each and every tissue including the muscles recieve oxygen.

In muscles there is Myoglobin which is another iron-porphyrin compound which has several times more affinity for oxygen than haemoglobin. This helps to extract more oxygen from haemoglobin in muscles.

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A gardener accidentally trims the leaves of a green plant too short. The leaves are now much smaller. He notices that the plants
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