The electric current in a wire is pushed by

A) magnetic force

B) electric force

C) gravitational force

D) force of friction

Silent mutations are changes that

Two species of flies, Drosophila melanogaster and Drosophila simulans, can mate. They usually do not mate, however, even if they are kept together in a laboratory.

How do we calculate magnification of a drawing

People who have an extra X chromosome could have gotten it through (A) nondisjunction. (B) transposition. (C) transduction. (D) crossing over. (E) all of the above.

Where is the energy held in the atp molecule

What does the cell nucleus contain A. chromosomes B. vacuoles C. cytoplasm D. chloroplasts

What is the photosynthesis equation

What three types of evidence allows us to determine whether organisms shared a common ancestor?

When addressing a counterclaim in an argumentative essay, it is important to A. Consider how the counterclaim reinforces then main position of your argument B. Include details and statistics that support the counterclaim C.

Almost all invasive species that exist today are a result of what?