What is the density of a mineral?

a. the ratio of a mineral's mass to it's volume

b. the ratio of a mineral's height to it's weight

c. a mineral's mass

d. a mineral's volume

If the bag is permable to starch what way will the starch move

What do all macromolecules have in common with eachother

How do the white blood cells tell the difference between your own body's cells' and invading pathogens?

What is the role of dna helicase during replication

What is a decomposer?

What is the complementary base of adenine in DNA? guanine cytosine thymine uracil

Fish in a marine environment must maintain a relatively constant ion concentration in their tissues and blood. How do the chloride cells in the gills aid fish in the removal of excess ions? A.

Name three groups of plastic sedimentary rocks

A section of DNA that carries enough information to make a single protein is called a (an) A. codon. B. enzyme. C. gene. D. intron.

During the winter months, water on the surface of a pond will typically freeze and this ice acts as an insulator for the water beneath it. As a result, aquatic life is able to survive during the cold winter.