Which of the following explains Darwin’s theory of natural selection? A) Individuals in a population with traits best suited for that environment survive and increase in number.
B) Present organisms are related to and descended from past organisms.
C) More recent species of organisms are changed descendants of earlier species.

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

How does secondary succession differ from primary succession?

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.