Which is a role of helpful bacteria? A)removing nutrients from soil
B)Producing oxygen
C)healing sick animals
D)preventing tooth decay

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

What is the next step in the process after a substrate enters the active site of an enzyme

How did the club fungi get its name? a. it is named for the club-shaped seeds it produces. b. it is named for the way individual species grow together in small groups called “clubs.” c. it is named for the club-shaped area where it produces spores. d. it is named for the club-like mechanism it uses to kill its prey.