Macromolecules
Scientists sometimes use ___________ to determine the health of
an ecosystem.
a. indicator species
b. chemical contaminants
c. water pollution
d. biomagnification
a. indicator species
DNA fingerprinting can be used to
a. assess actual disease risk. b. prove a family relationship. c. find all recessive alleles. d. measure gene expression
b. prove a family relationship.
Technologies and medical advances, such as indoor plumbing and antibiotics, have influenced human population by
a. slowing birth rates
b. increasing Earth’s carrying capacity
c. reducing Earth’s carrying capacity
d. increasing death rates
b. increasing Earth’s carrying capacity