Only angiosperms produce______________
a. pollen c. fruits
b. seeds d. all of the above
C
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The hypothesis that proton motive force drives ATP synthesis is called the ________ hypothesis.
Fill in the blank(s) with the appropriate word(s).
Match the following items with the correct phrases.
_______1. ____________________ are also known as immunogens. _______2. Molecules referred to as antigenic determinants are also known as ____________________. _______3. ____________________ are in a class of proteins called immunoglobulins. _______4. Small molecules called ____________________ are antigenic only when then are coupled with large carrier molecules such as proteins. _______5. ____________________ initiate type III hypersensitivity reactions. a. antibodies b. antigens c. epitopes d. haptens e. immune complexes
Gonococci infect
A. cows. B. iguanas. C. sheep. D. humans. E. cows AND sheep.
Which of the following types of tissue covers body tissues and lines internal cavities?
a. connective b. muscle c. nervous d. epithelial