Environmental resistance decreases a population's ability to
survive. Which of the following
would be considered a factor for
environmental resistance?
A. high reproductive rate
B. generalized niche
C. low reproductive rate
D.
ility to migrate to other habitats

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.