
In humans, the medulla region of the brain is mainly responsible for the regulation process of respiration. It is also called the respiratory rhythm centre. The chemosensitive area located near the respiratory centre sends signals across nerve impulses to alter the rate of expiration to eliminate compounds.
A, i think, hope this helps:)
Answer:
allele - different forms or versions of genes
chromosomes - structures that carry genetic information (passed from biological parents to offspring)
homologous - similar in structure
locus - a particular site or location
Explanation:
The best answer here is they show seasonal difference in flowering. if they self pollinated they could still interbreed assuming they flower in the same seasons
Scar tissue is made of a protein called collagen