The equation (N/t)/N1 (where N denotes the size of a population and t represents time) is used to calculate:
A. a habitat's carrying capacity.
B. the "available" percentage of a habitat's
carrying capacity.
C. a population's density.
D. a population's intrinsic growth rate.
E. Euler's number.
D
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Which of the following would be considered to be a synapomorphy of conifers and flowering plants?
Given the following list of characteristics:
A. Chlorophylls a & b.
B. Vascular tissue.
C. Seeds.
D. Flowers.
E. Both chlofophyls a & b and vascular tissue.
Which of the following would work as an antidote for someone who was bitten by a black
widow spider?
a. a drug that blocks the sodium–potassium pump b. a drug that causes potassium gates to open c. a drug that blocks acetylcholine binding sites d. a drug that stimulates the release of calcium
What are the proximate causes that underlie an animal’s ability to detect and respond to stimuli?
a. only physiological mechanisms b. only genetic mechanisms c. genetic and physiological mechanisms d. genetic, cellular, physiological, and anatomical mechanisms e. genetic, physiological, and anatomical mechanisms
__________ stimulate cell division, release lateral
buds from apical dominance, and inhibit senescence. Fill in the blank(s) with the appropriate word(s).