The rock and fossil record shows that?

Choose the correct words to complete the sentences related to genetic screening. is a procedure that is used during pregnancy to detect genetic defects. is extracted from the uterus and used to identify genetic disorders?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity