The concentration and toxicity of a chemical in the body is affected by: a. route of entry into the body b. received dose of the chemical c. duration of exposure d. all of the above

Which ocean contacts only one continent? A) Indian B) Southern C) Arctic D) Pacific

Most of the fats in food take the form of Answer a. phospholipids. b. monoglycerides. c. sterols. d. triglycerides.

How would an increase in nest sites affect a population of pigeons

Monosaccharides are the building blocks of

Explain why it is correct to say that the air and good passages cross in the pharynx?

How macromolecules are broken down and used to make new molecules.

How do soils form? A. Plants cement mineral particles together to form soil. B. Plants provide organic matter and minerals to make soil. C. Erosion transports mineral particles, and plants die and decay. D.

Give three examples of places bacteria live.

How can scientists learn from observations

The minimum amount of energy the body uses at complete rest is known as the energy balance. resting metabolic rate. metabolic balance. basal metabolic rate.