What is the limbic system? What does it control?
What will be an ideal response?
The limbic system is a group of brain areas including the amygdala, hippocampus, thalamus, cingulate gyrus, and hypothalamus that encircle the upper brain stem. It is the major control center for emotions and self-gratifying behavior.
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This is an example of which type of selection?
You are all excited because you just purchased a male guppy that has red, blue and green colors on its fins and tail. Your guppies at home do not have this combination of colors. You place the new male in with three females for mating purposes. After three weeks you have many new baby guppies and most of them have the new color combination. A. Natural. B. Environmental. C. Analogous. D. Convergent. E. Artificial.
The niche of an earthworm in an ecosystem is as a(n)____
a. producer b. consumer c. detritivore d. decomposer e. parasite
Over the past several decades, the overall trend for earth's temperatures has been
A. decreases in overall global temperatures at an accelerating rate, a phenomenon known as global cooling. B. a gentle trend towards colder winters and hotter summers, which averages out to be very little overall global temperature changes. C. cyclical periods of warming and cooling, known as global climate change. D. increases in overall global temperatures at an accelerating rate, a phenomenon known as global warming.
A specific type of PRRs that function as signaling receptors, bind the host cell nucleus, and initiate appropriate gene expression are called
A) PAMPs B) Toll-like receptors (TLRs) C) MHC Class I receptors D) MHC Class II receptors