In an experiment, the control is

a standard used for comparison

the factor that should be changed

the hypothesis you are trying to support

the theory that guides the research

What does a stage does a cell spend most of its its life in

What kind of molecule is the end product of the calvin cycle?

Where would coelacanths be located on a branching tree diagram? a. Closest to modern fish c. Closest to extinct fossil fish b. Closest to crocodiles d. Closest to modern worms

What causes the most difference in air pressure? a) differential heating b) winds c) differences

How well did your brainstorming of the steps necessary to remove a kidney match-up with the actual surgical procedure? explain your answer?

Which route represents the path taken by the European explorer Christopher Columbus? A) 1 B) 2 C) 3 D) 4

Which gas is the most abundant of the trace gases? A. nitrogen B. oxygen C. argon D. carbon dioxide

Describe the central dogma of molecular biology, briefly describe the processes of transcription and translation.

magine that the animal body produced sperm and eggs with mitosis instead of meiosis. What chromosome number would the autosomes of the third generation have if the first generation had four chromosomes

A well supported testable explanation of phenomena that have occurred in the natural world is called