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.
the answer for this question is the distance of the star from sun using parallax method
Answer:
The animals living on land warms the egg to produce its baby where as the animals living on water doesn't makes it warm and most of them leaves the egg all alone. The egg which animals on land give are dry where as animals living in waters egg is unique than the animals which produce on land
One positive impact of this type of power plant on the environment is that I creates no pollution, unlike other types of power plants like nuclear and fossil fuel.
One negative impact of this type of power plant on the environment is that it could harm fish. As the water hits the turbine, fish that it pulls along also hut the turbine, potentially killing them.
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Answer:
cnidarians most commonly reproduce asexually
