Which statement describes the relationship between the lizard and the frog on the food web?

a. heterotrophs supply food for the autotrophs.
b. autotrophs supply food for the heterotrophs.
c. heterotrophs compete for the same food source.
d. autotrophs and heterotrophs share the same food source.

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.