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Arisa [49]
3 years ago
13

evaluate whether having sickle cell disease would be advantageous or disadvantageous to a person living in central africa

Biology
1 answer:
poizon [28]3 years ago
6 0
It's something to do with the fact that having sickle cell anaemia reduces the chances of contracting malaria, obviously a very common disease in Africa. I'm not quite sure what the link is but hopefully this helps a little bit?
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Four different types of cells are shown below. . Which characteristic is shared by all four cells? A. Membrane-bound organelles
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The answer is option c.

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8 0
3 years ago
compare the four kinds of tissues connective tissue, epithelial tissue, muscle tissue, and nervous tissue. hi and also if you do
kirza4 [7]
<h3><u>Connective tissue:</u></h3>

It is the layer under the epithelial tissue in the body. It is stronger than epithelial tissue and is found in many organs. It provides protection.

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<h3><u>Muscle tissue:</u></h3>

It is located in the joint areas and forms the support and movement system. It allows us to make bodily movements.

<h3><u>Nervous tissue:</u></h3>

It is the fastest communication tissue. It allows us to feel pain and the sense of touch. It is impossible to repair this tissue after it is damaged. It causes paralysis. It is very important as it plays a role in the activity of neural transmission.

3 0
3 years ago
The original remains of ancient animals such as saber-toothed cats have been perserved in _____.
PSYCHO15rus [73]
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