When heavily armored marine sticklebacks have invaded freshwater lakes where there are no predatory fish, their populations have evolved lighter body armor. Given what you've learned about evolution, which of the following explanations for why this happens is most plausible? a. Young sticklebacks only grow heavy armor when they see predatory fish in their environment.
b. When sticklebacks don't use their armor, it shrinks. Then they pass lighter armor to their offspring.
c. Concentrated pollutants in freshwater lakes disrupt the sticklebacks' ability to grow armor.
d. Heavily armored fish grow more slowly and breed later, making armor disadvantageous in these lakes.

Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Why do oceanic plates tend to subduction when colliding with a continental plate