Internal state and environmental
Answer:
The first question would be all vertebrates belong to the Chordata phylum.
The second question is they possess specialized tissue, are sessile, and exhibit NO bilateral symmetry.
The third question is that the largest phylum in the Animalia kingdom is the Arthropoda.
Chordata Phylum: Eagle.
Insecta Class: Lady Bug.
Arachnida Class: Scorpion.
Crustacea Class: Lobster.
Mollusca Phylum: Snail.
Explanation:
Answer:
D. Control the blood flow into the capillary bed
Explanation:
The degree of filling of the capillary bed and level of arterial pressure within the vascular system is determined mainly by the degree of tonus (firmness) in the smooth muscle of the arterial wall. Arterioles have relatively narrow lumina, thick muscular wall and precapillary sphincter.
