When a dog's brain detects the need to dissipate excess heat and the dog begins to pant, the brain acts as the _________________, and the panting behavior acts as the ________________. 

A. stimulator; effector
B. integrating center; sensor
C. integrating center; effector
D. sensor; integrating center


C. integrating center; effector

Biology & Microbiology

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The contraceptive device that is a soft latex cup with a flexible rim that fits over a woman's cervix is a(n) _________.

Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Metabolism refers to 

A. chemical reactions such as photosynthesis. B. the process of reproduction. C. the formation of heterotrophs. D. a collection of hypotheses.

Biology & Microbiology

Science cannot answer certain faith-based questions because

A) there aren't enough variables. B) faith-based beliefs are impossible to either prove or disprove. C) faith requires deductive reasoning. D) scientists are not able to study human behavior.

Biology & Microbiology

The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an

A. variable region. B. antigen binding site. C. epitope. D. hapten.

Biology & Microbiology