Bordetella pertussis causes whooping cough by
a) irritating the diaphragm, which leads to severe coughing attacks.
b) forming a pseudomembrane that obstructs the respiratory passages.
c) interfering with the activity of ciliated epithelial cells in the trachea.
d) suppressing mucus production.
e) the development of pneumonia.

In a vegetable garden 45 bean plants have been eaten by deer 5 are untouched what is the frequency of bean plants in the garden that have been eaten?

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.