Answer:
A
Explanation:
natural selection depends on the variation in the traits of the organism. Those who are able to survive the catastrophic are able to pass their offspring to the next generation.
<span>47 chromosomes is the correct answer. Humans have 23 pairs of chromosomes, making 46 chromosomes in total. Down's syndrome is the addition of an extra chromosome on chromosome 21, leading to an uneven number.</span>
Answer:
D
Explanation:
You can immediately eliminate B and C. So between A and D, D is the best answer.
If there is a blockage or artery or it has been burst open
in a person’s brain, it is likely that the patient has stroke. It is because
stroke occurs when blood supply in the brain of the person has been disrupted
in a way that it has been reduced and is lacking enough supply, that could
cause artery to be blocked or to burst. It could lead to different kinds of
stroke of one can exhibit and each types could vary of which could heavily
affect one person and how it will affect his or her way of doing things and
this could also result in tragic results, such as death if not paid attention
immediately.