Which two elements make up the most common compound in the human body?
A. H and O
B. P and Ca
C. N and O
D. C and H

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.