Discuss some reasons for amensalism among suspension feeders & burrowers. compare & contrast lifestyles & optimal feeding environments.?

Which of the following is an oxidation-reduction reaction? (pictured below)

Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected