Afight between a family of lions and family of hyenas over an animal carcass would be best described as competition between a. a community and an ecosystem. b. two different populations. c. two different communities. d. a population and a community.

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root