Do muscle fibers have a refractory period like nerve fibers?

Prokaryotes usually have a

In terms of ATP production, which process results in the most total energy

1. ___observation is made using one or more of the five senses. 2. An independent variable is a variable that's___changed in an experiment. 3. An explanation based on an observation is a a/an ___ 4. There may be only one___variable in an experiment.

What is the naming system? And how do we write the genus and species correctly?

Ja'ron lives near a river that flows through farmland. He notices that the river has become more polluted over the years. The water that was once clear is now sometimes cloudy and has an unpleasant odor.

True or false? Selective legalization is an approach that would legalize those drugs of abuse that are the most likely to cause addiction.

These muscle cell could be best called

A scientific ___ best explains certain observable facts

What level of organization is represented by a nucleus within a cell

In which species of animal does sebum eventually become lanolin? A. Caprine B. Feline C. Ovine D. Bovine