Which of the following is a component of the plasma membrane that creates a chemical barrier between the inside and the outside of the cell?

cholesterol

water

proteins

phospholipids

What are the possible genotypes of a person with type B blood?

Which of the following explains why a tree is often used as a model to represent the principle of common descent

What characteristic is most likely to narrow down soil sample matches? Soil color Presence of vegetation or animal material Presence of rare minerals or artificial debris Soil texture

If water were not available in the mitochondria what would most likely happen

Condensation reactions are also referred to as dehydration synthesis explain how the name dehydration synthesis is descriptive of the process

Which kind of biologist would most likely use satellite technology?

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.