Each lung consists of millions of tiny air sacs called___. Each air sac is surrounded by a tiny blood vessel called a___.

What is a scientific hypothesis? In what two ways can a hypothesis be tested?

Which is an example of chronic physiological toxicity? a. amotivational syndrome b. high blood pressure from smoking c. respiratory arrest from an alcohol overdose d. paranoia from methamphetamine use

Which type of microscope is needed to view a virus in the laboratory?

Seventeenth and eighteenth centuries that medicine emerged as a practice based on science instead of an art based on religion and superstition. True False

After teaching a class about the endocrine system, the instructor determines that the students need additional instruction when they identify which of the following as an endocrine gland? A) Pancreas B) Adrenal gland C) Testes D) Kidneys

What type of energy transformation takes place when carbon is cycled as animals sweat from movement? Thermal energy to thermal energy Chemical energy to chemical energy Chemical energy to thermal energy Mechanical energy to chemical energy

Which model of light states that light travels in a series of waves?

If you were going to study the effects of certain fertilizer on plant growth, which list of variables would you most likely want to standardize (keep constant) ?

Specify the three ways in which prokaryotes obtain energy for cellular respiration

Imagine that you are working with a female client who is 27% body fat percentage. what is required of her to maintain her level of leanness?