Multiple Choice Quiz


1	Monarch butterflies use:
		A)	milkweed sap as protection for their scales
		B)	a series of generations to accomplish migration
		C)	orange and black patterns on their wings to attract predators
		D)	aerodynamics to achieve dives in excess of 200 kph


2	The spatial distribution of organisms is affected by:
		A)	history
		B)	species interactions
		C)	climate
		D)	all but a
		E)	all but d


3	Regular distributions of organisms:
		A)	prove that they are antagonistic toward each other
		B)	show an equal chance of organisms being found anywhere in the plot
		C)	may have several explanations
		D)	are only found in agricultural systems


4	Larrea tridentata:
		A)	migrate up to 18,000 km across the Pacific
		B)	have little root overlap
		C)	are endoparasites of stingless bees
		D)	can exceed 10⁹ individuals per cubic meter


5	In general:
		A)	populations have individuals of random size
		B)	random patterns are characteristic of animal populations
		C)	larger organism size is correlated with lower population density
		D)	none of the above


6	A matrix approach to rarity indicates:
		A)	which species may be most vulnerable to extinction
		B)	very little about why some organisms are common
		C)	where specific population thresholds might exist
		D)	which species are most important to ecosystem function


7	The mark-recapture method:
		A)	requires that marked animals be killed
		B)	makes estimates based on proportions
		C)	requires an approximation of K in the numerator
		D)	requires an approximation of K in the denominator


8	Based on photographic evidence, the North Atlantic population of humpback whales numbers about:
		A)	110
		B)	550
		C)	1000
		D)	5000


9	Within the intertidal zone:
		A)	exposure to air varies
		B)	the constant water depth increases competition
		C)	chemoautotrophs have an advantage due to “the blue shift”
		D)	population changes are below detection limits


10	True or False: The Lincoln-Peterson index is calculated from N = Mn/m.
		A)	True
		B)	False


11	True or False: The Lincoln-Peterson index works because field studies have shown that all individuals in a population have an equal probability of capture.
		A)	True
		B)	False


12	True or False: Because “m” represents a weighted average in the Lincoln-Peterson index, a few organisms that lose their marks won’t change “N”.
		A)	True
		B)	False

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