Stale air does not get trapped in amphibian lungs because it flows through a system of tubes and air sacs.

True or false?

A sudden decrease in the number of bacteria in the soil would most likely

What evidence do scientists use to support theories about climate changes that occured on earth

When water intake is low, spinal cells in the brain signal the pituitary to release a. epinephrine. b. antidiuretic hormone. c. thyroxin. d. insulin.?

If two species have very similar structures, they have evolved from a

3. Could a man with type AB blood be the father of a child with type O blood? Explain your answer utilizing Punnett squares (see Ch 29 in the text for an example).

Describe the steps involved in the breakdown of glycogen. How does this differ from the formation of glycogen from glucose?

A population of snail darters is drastically reduced by the introduction of a large predator fish into an isolated stream. the predators eat almost all darters less than 5cm long. this is an example of a. the bottleneck effect b.

Which person is most likely to be infected when exposed to foodborn pathogens

What would we expect from a jit plant as compared to a plant that does not use jit?

You should begin a new investigation A. by making up the data that you will report later. B. by reviewing related work done by others. C. by using only your opinion on how the investigation should be done.