Smoking irritates the cells lining the respiratory tract causing them to produce more mucus than usual how is this related to the fact that smokers have more respiratory infections than do nonsmokers

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.