Russia ur welcome dhrjffn
A modified vehicle with a raised height has
its center of gravity of tempered with. When the center of gravity shifts from
the original place of an object to another without its overhaul or re-design,
it becomes unstable and is more likely to topple over.
Aerobic respiration produces 38 ATP, while anaerobic respiration only produces 2 ATP. I hope that answered your question, my friend. :)
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.