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Kay [80]
2 years ago
10

HELP ASAP 10 pts per person, plz back up your answers with reasons plzz

Biology
1 answer:
expeople1 [14]2 years ago
3 0

Answer: Its A

Explanation:

I took the test

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The answer is Predator 2
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3 years ago
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The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
lions [1.4K]
The answer is stabilizing selection.

<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

7 0
3 years ago
If a student tests a carrot with iodine and that test is negative what can that student conclude about the carrot?
Alex17521 [72]
That there is no starch present in the Carrot.
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Which is a renewable energy resource?<br><br> coal<br> petroleum<br> wind<br> natural gas
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Changes in groups of organisms over time produce variations in a population. this relates to _____.
vlabodo [156]
Changes in groups of organisms over time produce variations in a population. This relates to both macroevolution and microevolution.
These are evolutions within a small group or a population and across the whole species. 
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