Between blood, liver, skin, and kidney cells, which:

- divides the most

- never or barely divides

- only divides when needed

- divides more than normal and without control

Early population ecologists conducted most of their research on small islands rather than on continents because a number of features of island populations make them easier to study. Which of the following is not one of those features? 1.

What group number are the alkali metals?

What do the meninges and the cerebrospinal fluid have in common?

One of the characteristics of retrotransposons is that

How long does it take for chocolate to melt in room temperature?

Cyclins are a family of closely related proteins that a. regulate the cell cycle b. cause cancer c. produce lipids

Many functions in the body are controlled by special compounds. Which statements about these compounds do you think are true? Check all that apply. The body can make all of the compounds it needs. The body gets energy from some compounds.

The wide range of eye color indicates that eye color is

you are using magnets in the classroom. During science you keep hearing your classmates drop the magnents. What testable question can you develop based on this observation?

Darwin argued that the beak size and shape of Galapagos finch species was related to their a. body size. b. food source. c. time of reproduction. d. flight pattern.