____ are like Pac Men from the vintage video game gobbling up any antigens they encounter. They are part of a primitive immunity system that is shared with lower order organisms, like the sponge, and provide a generalized response against pathogens within minutes to hours. a. Lymphocytes c. Natural killer (NK) cells b. T cells d. Phagocytes
Fill in the blank(s) with correct word
D
You might also like to view...
What do positive reinforcement and negative reinforcement have in common with each other? a. They both strengthen a behavior
b. They both weaken a behavior. c. They both depend on presenting some stimulus. d. They both depend on avoiding some stimulus.
Why do some researchers argue that complex social interactions in the animal kingdom are representative of higher-order consciousness?
A. These interactions increase survival of the species. B. These interactions are inherent and reflexive. C. These interactions are only observed among more advanced species. D. These interactions require thinking beyond the self.
As Oscar leaves a store, he sees some money on the ground. He picks it up but hesitates: he wants to keep the cash but thinks about how the owner might feel when the loss of $20 is discovered. According to Freud, the part of Oscar's personality structure causing his uncertainty about what he should do with the money is the:
A. preconscious. B. conscious. C. ego. D. superego.
In order for two blindfolded chess players to play a game, they must rely on all of the following EXCEPT
a. respondent conditioning. b. images. c. concepts. d. the notational system of chess.