When molecules move through a cell membrane from an area of greater concentration to an area of lesser concentration by way of a carrier protein, it is called

Which of the following processes requires both a carrier protein and energy?

The type of bond that forms between two atoms when electrons are shared is a(n) ________ bond.

The type of bond that forms between two atoms when electrons are shared is a(n) ________ bond.

Atoms that bear a positive or negative charge are known as

The most inclusive group in taxonomy is a

All the populations of a particular kind of organism are members of the same

Objects that are not actively moving but have the capacity to do so are said to possess

Light energy arrives at earth in tiny packets called

Photosynthetic pigments are embedded into the membranes of flattened sacs within chloroplasts called