A crab dies and becomes buried beneath the mud in the bottom of the ocean. The mud fills in tightly around the crab's shell. Over many years, the shell decays and the mud hardens. This leaves a hollow space that is the same shape as the crab's original shell.
A. Amber
B. Mold
C. Cast
D. Imprint
E. Petrified

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.

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.

Will camels hump ahrinks.give reason