Most multicellular organisms are composed of cells with different shapes and sizes, and those cells perform different functions. what
is the best explanation for this?

Which of the following examples can cause gene flow between populations? a.an increase in predators to a population of zebra b.a volcanic eruption that kills half of a population of mice c.bird droppings that contain seeds from a different location d.a person that sprays a toxin on a group of mosquitoes

In what for do plants utilize nitrogen? why do they need nitrogen?

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false