Which factor within a population could be studied to determine whether the population is evolving? a. reproduction method b. age of individuals c. allele frequency d. number of individuals

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Adding more tributaries to a local river basin can have what effect?

Which statement best addresses the differences in sex cell differentiation between the red-eared slider turtle and a human?