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Marine Bio Ch 4 3 Of 3

Test Description: Energy of LIfe BMCHS

Instructions: Answer all questions to get your test result.

1) Limiting factors are

Aa physiological or biological necessities that affect survival Bthe genetics that restrict an organisms maximum size

2) The ocean regions with the most promary productivity are

ATropical Regions BCoastal regions and sub polar regions

3) For the most part, the less light the ______________ primary productivity

ALess BMore

4) Compensation depth is the depth at which

AThe oxygen produced by autotrophs equals the oxygen they need for respiration BThe autotrophs compenstate for too much oxygen through acclerated respiration

5) A trophic pyramid is

Aa physical structure that directsw food energy for cellular respiration Ba representation of how energy transfers from one level to an organism to another

6) A primary consumer is

AAn organism that consumes primary producers BAn organism that photosynthesizes CAn organism that consumes secondary consumers

7) A secondary consumer is

AAn organism that photosynthesizes BAn organism that consumes primary consumers CAn organism that consumes primary producers

8) About ____ if available energy transfers from each level of the trophic pyramid to the next

A5% B50% C10% D30%

9) A food web better represents the flow of energy in nature than a trophic pyramid because

AScientist don't really know what organisms consume BOrganisms often eat acorss the theoretical levels of the trophic pyramid

10) Deccomposition is essential to life becaue through it

AOrganic compounds are recycled into ortganic energy that primary consumers use BOrganic Compunds are recycled into the inorganic compounds that primary producers use

*select an answer for all questions

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