The trophic level of "producers" includes ________

A) any organism producing biomass directly from photosynthesis
B) any organism using oxygen for respiration
C) heterotrophs only
D) the sum of both living and dead biomass in an ecosystem
E) heterotrophs and autotrophs


A

Environmental & Atmospheric Sciences

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What will be an ideal response?

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Which of the following solutions is isotonic with a 0.15 M NaCl solution?

A) 0.15 M glucose, C6H12O6 B) 0.30 M glucose, C6H12O6 C) 0.10 M aluminum chloride, AlCl3 D) none of these

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A sea breeze is usually best developed early in the morning

Indicate whether the statement is true or false

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Water's viscosity is a ________ to planktonic organism and a ________ to nektonic organisms

A) help; help B) help; hindrance C) hindrance; help D) hindrance; hindrance E) Water's viscosity has no impact on both planktonic and nektonic organisms.

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