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Tasya [4]
3 years ago
7

Two of the negative effects of sickle cell anemia are ______________________ ______________________________ and ________________

______________________________ _______________.
Biology
1 answer:
lbvjy [14]3 years ago
5 0

Answer:

delayed growth, episodes of pain, painful swelling of hands and feet, vision problems, frequent infections

Explanation:

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Natural selection is the mechanism by which organisms inherit negative traits that ultimately lead them to die. True or false
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Natural selection is the mechanism in which organisms inherit the traits that are necessary for survival and thus change. Those who do not have these traits die.
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D acceleration is the answer
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3 years ago
Pollen develops from the mitotic division of microspores. given this information, to which specific stage in a heterosporous lif
miv72 [106K]

The mitotic division of microspores belongs to the gametophyte stage of the life cycle of the pollen.

<h3>What are pollen grains?</h3>

Pollen are very important in the propagation of a flower. They need to be involved in the process of fertilization. As a matter of fact pollination is the transfer of pollen grains from the anther to the stigma of a flower.

Now we can see that there are various stages in the development of pollen. The mitotic division of microspores belongs to the gametophyte stage of the life cycle of the pollen.

Learn more about pollen:brainly.com/question/21021623

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4 0
1 year ago
The diagram shows the transfer of calcium ions into a cell
Ulleksa [173]

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