7. Chemical or physical factor that determines the number
of organisms in a population

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings