A( can withstand high blood pressure due to the thickness of its and
select one:
a. vein; smooth muscle; elastin
b. vein; smooth muscle; tunica intima
c. artery; smooth muscle; elastin

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases