Which term best describes a human being?
(a) omnivore.
(b) herbivore.
(c) carnivore.
(d) parasite.
(d) parasite.
Biology & Microbiology
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In the vertebrate kidney, reabsorption and secretion take place in the renal tubules; after that, the filtrate enters the collecting ducts as ____
Fill in the blank with the appropriate word.
Biology & Microbiology
Bob dreamt he was biking for five hours. The actual time he was in ____ sleep was probably about ____ minutes
a. beta; 15
Biology & Microbiology
Which term refers to plants that complete their life cycle in two growing seasons?
a. perennials b. annuals c. monocots d. biennials e. eudicots
Biology & Microbiology
An antigen is:
a. a phagocytic cell. b. used to combat infections. c. a molecule used by bacteria to destroy antibodies. d. any molecule that is recognized as foreign by the immune system. e. produced by a white blood cell.
Biology & Microbiology