In ancient times, people classified plants and animals by use. true or false?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere