To be useful, a scientific hypothesis must: Select one: a. be true. b. be testable. c. be very specific. d. apply in all situations.

If you engage in seasonal sports, such as skiing, what should you do in the off-season? a. relax and recuperate b. engage in activities that will preserve fitness c. engage in a strength-training program d. reduce strenuous activities

Why might a seat in the senate be more attractive to a candidate than a seat in the house?

Lifting weights will cause muscles to enlarge. This is primarily due to

Which would provide the body with the most energy?

Human ears have muscles responsible for ear movement. What form of evolutionary evidence is this?

How the combination of electrons, protons and neutrons results in a neutral charge of an atom?

2) Tay Sach's disease is a fatal genetic condition, in which affected individuals cannot metabolize fats properly. Children who inherit the disease rarely live past the age of five.

Which climate factor involves a decrease in temperature due to lower air pressure? A. latitude B. elevation C. topography

How are immune cells able to detect foreign pathogens?

Dog excrement is carried by rain into bodies of water, where it causes algae to grow rapidly and crowd out other organisms in the ecosystem. What is this process called?