Which one of the following is NOT an example of behavior?
A. A plant bending toward a light
B. A student sleeping in class
C. The wind rustling fallen autumn leaves
D. A cat purring
C. The wind rustling fallen autumn leaves
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An organism made up of many highly specialized kinds of cells that coordinate their activities is a(n)
A. simple multicellular organism. B. aggregation. C. colonial organism. D. complex multicellular organism.
Hummingbirds are small birds that require a regular food supply
When hummingbirds are faced with a situation that decreases their food supply, such as a storm, which of the following adaptations would be most useful for the bird to survive such an unpredictable and short-term absence of food resources? A) shivering B) torpor C) hibernation D) burrowing into soil
The lambda immediate early gene N
a. is a repressor that maintains the lysogenic cycle. b. encodes an antitermination factor. c. is not needed for the lysogenic cycle. d. activates late gene expression. e. is not needed for the lytic cycle.
Vasoconstriction is a term that refers to the contraction of muscle in the walls of the blood vessels, thus causing the diameter of the blood vessel to decrease. Which one of the following types of muscle would be involved in this contraction?
A) skeletal B) smooth C) cardiac D) both cardiac and smooth E) both skeletal and smooth