The base of the pyramid is built from organisms that primarily A) are autotrophs. B) are heterotrophs. C) consume organisms located above them.

The 22 pairs of chromosomes in human somatic cells that are the same in males and females are called

Which statements are true about a stable community? Select one or more: a. There is a large variety of species b. The populations of the species are reasonably constant over time c. It is easy to replace a stable community d.

Explain why a concentration gradient across a membrane represents potential energy.

Determine the genotypes of the parents if the father is blood type A, the mother is blood type B, the daughter is blood type O, one son is blood type AB, and the other son is blood type B.

Organizing results into a table graph or chart is done during which step of scientific inquiry

Which one of these equations applies to a bond that currently has a market price that exceeds par value?

What is the science that deals the study of human beings?

You have AB + blood. Your spouse has AB - blood. What is the probability that your first child will have O - blood?

Which type of plant cell is undifferentiated?

Oxygen is moved around the body of an echinoderm in its A) madreporite B) bony plates C) water vascular system D) arms