Answer:
B. Humans and chimpanzees share a relatively recent common ancestor.
Explanation:
Both the humans and Chimpanzees are the primates that are they belong to the same group called hominids and genus called Homo.
When the DNA sequences of the Chimpanzees and the Humans are sequenced and compared than they showed that 98% of the genome is similar.
In the given question, the single strands of the humans and the chimpanzees base-paired which showed that 98% of the nucleotide sequence is the same. The most possible reason for this similarity is that they both were evolved from the common ancestors and they diverged recently in the past.
Thus, Option-B is correct.
The adrenal glands respond to stress by secreting Epinephrine, and Norepinephrine. Epinephrine causes the blood vessels to narrow, and it also opens up airways in the lungs. Norepinephrine increases the heart rate and blood pressure, and it also causes the energy stores to release glucose.
Explanation:
in a synapse, neurotransmitters are stored in vesicles located in the axon terminal of the presynaptic neuron
Answer:
Metaphase can be described as one of the most important phase of mitotic as well as meiotic cell division. In this phase, sister chromatids align themselves at the center of the cell which is known as the metaphase plate.
If the sister chromatids did not align properly, then there will nor be equal distribution of the chromatids in the daughter cells being formed. It might be that a daughter cell receives more chromosomes whereas the other daughter cell receives less chromosomes. Disturbances in this phase will not result in equal number of chromosomes in both the cells.