Xylem and phloem combine to form which of the following?

A. epidermis cells

B. vessel members

C. guard cells

D. vascular bundles

What are hippocampal place cells? A. Neurons that fire when the subject remembers being in a specific place B. Neurons that fire when the animal successfully completes the Morris water maze C.

What would happen to the original rabbit population if you introduced another type of rabbit, one that could run faster and escape its predator?

Cladistics is a way to separate animals into new species.

Individual living things are called

To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas.

The movement of air particles around a vibrating object is a

About how much of the United States is covered by forests? A 90% B 10% C 50% D 30%

What is the layer underground where all empty spacess are filled with water

What type of epithelial tissue is specialized to stretch repeatedly without damage?

A research team needs an antibody that binds to a protein of interest so that protein expression can be monitored. They use epitope tagging, adding an epitope (a sequence of amino acids) to the protein through DNA recombination.