Which of these organisms has an exoskeleton? beetle flower tree elephant

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

What is the difference between a scientific hypotheses and a scientific theory?

What is the most important inorganic material for livings things? ! due tomorrow!