2. What term is also used to describe insertion and deletion mutations?
A. Gene regulation
B. Frameshift mutations
C. Crossing over
D. Substitutions

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Easy 6th grade work! 100 points! i need fast! compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.

In which part of the body is a ball-and-socket joint found?