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22 Apr 2018

Q6: Biomagnification occurs when

A- toxic substances that accumulate in one organism get transferred to its predator

B- birds of prey are harvested by humans

C- organisms take up toxic chemicals from the environment

D- toxic substances threaten ecosystem services

Q7: A good hypothesis is

A- eventually turned into law

B- testable and falsifiable

C- proof of a theory

D- a fact that is supported by fundamental principles of physics and chemistry

E- a rule of thumb

Q8: The precautionary principle

A- is the same as the "innocent until proven guilty" approach

B- brings substances to market cautiously, only after extensive testing

C- brings products to market relatively quickly after limited testing, and are removed when more extensive testing proves them harmful

D- states that mandatory testing will hamper the introduction of products that consumers want

Q9: What is true about native species on the Hawaiian islands?

A- island dwelling species that have lost defenses are vulnerable to extinction when enemies are introduced

B- many evolved for millions of years without needing to defend themselves against the threat of predation by mammals

C- many are endemic

D- all of the above are true

Q10: Logisitc growth?

A- has no limiting factors and populations rise exponentially

B- has limiting factors that determine a carrying capacity

Q11

_________ have already undergone the demographic transition.

A- developing countries

B- developed countries

C- countries with high replacement fertility rates

D- agrarian societies

E- none of the above

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Casey Durgan
Casey DurganLv2
23 Apr 2018
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