Echinoderm is mostly related to the member of the phylum:

(a) arthropoda

(b) chordata

(c) cnidaria

(d) mullusca

What is amniotic fluid?

5. Which factor within a population could be studied to determine whether the population is evolving?

Was the first person to propose the idea of moving mountains continents as a scientific hyphothesis

Of all the debris that washes into the ocean, plastic remains the longest because it does not: A. float in currents B. biodegrade C. get ingested by fish D. get ingested by birds

Human immune cells, called macrophages, engulf bacteria and other foreign material. Is the action of a macrophages an example of endocytosis?

What one element makes up the "base" of all four of these macromolecules?

Osmosis is the diffusion of water across a selectively permeable membrane in which water moves from a solution containing a low concentration of solute to what kind of solution? A. a solution containing the same amount of solute B.

When mixed, which states of matter form only a homogeneous mixture?

Do bats communicate with infrasound

The primary source of energy for most cells is