What causes asthma?
a. bacteria that are resistant to antibiotics infect the body.
b. particular antigens trigger muscle contractions that make it difficult to breathe.
c. antibodies and cytotoxic t cells attack cells in the tissues of the lungs.
d. mosquito-borne pathogens enter the bloodstream.

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.