Give examples of at least two species that are either extinct or facing extinction due to each of the following: 1)
destruction of habitat, 2) biotic pollution, 3) unregulated hunting and poaching, 4) deliberate pest or predator control, and
5) commercial harvesting. What will be an ideal response?
Concepts to Consider: 1) almost any species with relatively limited or very large habitat
requirements or range; 2) introduction of the zebra mussel to the American Great Lakes has
impacted native bivalve populations; goats to some of the Galapagos Islands; sheep and other
mammals to Hawaii; all of which have had impacts on terrestrial endemic species,
particularly birds; 3) the passenger pigeon, tigers, bears, rhinos, elephants; 4) prairie dogs,
Carolina parakeet, wolves; 5) imported or collected animals for sale as pets; both plants and
animals sold to collectors; and plants, particularly carnivorous plants, cacti, and orchids.
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Three plants that share the same niche have taproots of different length. This is an example of ____
a. character displacement b. the competitive exclusion principle c. resource partitioning d. allopatric speciation e. sympatric speciation
Coccolithophores are abundant in:
a. cold marine waters. b. tropical waters. c. subtropical areas. d. open ocean. e. river mouths and estuaries.
In which group does most of the carbon dioxide formed during aerobic respiration leave across the skin?
a. fish b. insects c. lizards d. amphibians e. snakes
Arrival of an action potential at an axon terminal ultimately results in the release of ________ into the synaptic cleft
Fill in the blank(s) with correct word