True/False

Please answer all questions


1	Habitat loss has occurred in all ecosystems and is a major factor in causing extinction. (p. 504)
		A)	True
		B)	False


2	Ecosystems around the globe are characterized by unique assemblages of organisms that have evolved together in one location. (p. 505)
		A)	True
		B)	False


3	Introduction of alien species usually means a beneficial contribution to local food webs. (p. 505)
		A)	True
		B)	False


4	Islands are not particularly susceptible to introduction of alien species. (p. 505)
		A)	True
		B)	False


5	Air pollutants released in one area tend to cause acid deposition in the same vicinity. (p. 505)
		A)	True
		B)	False


6	Many northern lakes are lifeless because acid deposition killed small invertebrates and decomposers at the base of the food chain. (p. 505)
		A)	True
		B)	False


7	Global warming is expected to lead to extinctions, but so far, an increase in greenhouse gases has not occurred. (p. 506)
		A)	True
		B)	False


8	Overfishing for a food species, such as tuna, is an example of overexploitation. (p. 507)
		A)	True
		B)	False


9	One major goal of restoration ecology is sustainable development. (p. 510)
		A)	True
		B)	False

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