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choli [55]
3 years ago
9

Which accurately describes gymnosperms? Select three options. Some of them lose their leaves in winter. Some of them lack seeds.

Some of them grow small flowers. They are the oldest type of seed plant. They include the tallest plants. They have female cones that produce pollen.
Biology
2 answers:
Ivahew [28]3 years ago
5 0

Answer:

Some of them lose their leaves in the winter, they are the oldest type of seed plant, and they include the tallest type of seed plants

Explanation:

Tom [10]3 years ago
5 0

Answer:

A,D,E

Explanation:

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How is water split into hydrogen and oxygen during photosynthesis?
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In humans, the embryonic and fetal forms of hemoglobin have a higher affinity for oxygen than that of adults. Why is this the ca
Bezzdna [24]

In humans, the embryonic and the fetal forms of haemoglobin have a higher affinity for oxygen than that of adults this is because non-identical genes produce different versions of globin during development. So the correct option is A.

<h3>What is meant by oxygen affinity? </h3><h3> </h3>

The amount of oxygen delivered to the cells will depend on the haemoglobin's oxygen affinity.  

Oxygen affinity is defined as the relationship between the saturation of haemoglobin oxygen, represented by SaO2 and the oxygen tension, represented by PaO2. This relationship is plotted by a dissociation curve which is S-shaped.  

Thus, in the embryonic the fetal form, haemoglobin has a higher affinity for oxygen.

Therefore the correct option is A.

Read more about haemoglobin, here

brainly.com/question/517799

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6 0
1 year ago
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Ludmilka [50]
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