Which describes one of the ways proteins behave in facilitated diffusion?

A) They change membranes.

B) They use ATP.

C) They change shape.

D) They create channels ...

How are mitosis and binary fission similar?

Which anatomical description is true of the parasympathetic division of the autonomic nervous system?

Acid mine drainage occurs when surface water infiltrates which of the following? A) strip-mined coal beds B) spoil banks where water chemically reacts with the minerals to create sulfuric acid C) spoil banks where chemical reactions occur with

In flowering plants, plasmodesmata are narrow channels through cell walls that connect the cytoplasms of adjacent cells.

What are two basic types of symmetry that appear in animals?

A particular tissue was discovered to have cells that lie in small chambers, separated by a matrix that is solid yet flexible, and fibers that could be stretched while still being able to return to their original length. Name this tissue.

What does the lac operon in bacteria code for?

Egg and sperm are a type of these?

What is Chemical digestion?

Where would sugar most likely be present in water?