What is the primary source of genetic variety behind natural selection and evolution? selected mutations of dna random mutations of dna selected mutations of rna random mutations of dnr

As global warming continues the ocean absorbs more of the earth's heat what term describes the ocean as a storage location for heat a) heat binb) heat sinkc) heat storaged) heat vent( answer this for me)

How does the nervous system affect the excretory system?

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.