Answer:
Because natural selection selects for it. Thus it persists.
Explanation:
You have to understand heterozygote advantage. Basically, it's where heterozygotes have an advantage over homozygotes. In the case of sickle cell disease, heterozygotes have an advantage, and natural selection favors whatever is advantageous. Thus, because heterozygotes each have one recessive sickle-cell allele, as natural selection favors the heterozygotes, the recessive sickle-cell allele persists and remains in the gene pool.
False, hearing is caused by the eardrum picking up sound frequencies made by Jil. So its not the air molecules, its the sound waves.
Answer:
(Cystoplasm) and (Ribosomes) are common in most living cells
Explanation:
Answer:
C, a decrease in metabolic activity
Explanation:
In times of drought, there would be a reduction in the metabolic activity of an organism.
- Most organisms found in very dry climates have adaptation to accommodate a period of drought.
- Water is essential for the metabolic processes in an organism.
- A deficiency of water will reduce these life activities.
- The organism can become inactive as a result of this.
Answer:
norms
Explanation:
The idea of norms provides a key to understanding social influence in general and conformity in particular. Social norms are the accepted standards of behavior of social groups. ... And as the individual moves from one group to another, their behavior changes accordingly. Norms provide order in society.
