This is an organism or cell with two sets of chromosomes.

A group of older stars that cluster together in a spherical shape and can contain up to one million stars per cluster is called: A. A globular cluster B. Open clusters C. Spherical clusters D. Accretion

Descriptive investigations involve collecting data about a system, but not making what?

Which is part of microevolution

Identify the parts of the nervous system. A: B:

What is a sodium potassium pump

Demographic transition is the transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system. A demographic transition involves four stages.

Why does the oxygen atom in a water molecule have a negtive change

Melting wax evaporating gasoline freezing water These changes are all examples of A) nuclear changes. B) physical changes. C) chemical changes. D) energy consumption.

A woman is a natural blonde and her husband has black hair. All their children have black hair. Why do you think that the blonde hair did not appear in any of the children?

Explain why capillaries form dense networks in tissues with a high metabolic rate