The process in which populations change over time O Ecology
O Natural selection
O Evolution
O Mutation

How is the carbon cycle related to global warming ?

Most of the carbon on earth is stored in the form of

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.