____ food chains tend to predominate in aquatic ecosystems.

A. Higher trophic level
B. Primary consumer
C. Decomposing
D. Grazing
E. Detrital


Answer: D

Biology & Microbiology

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Conifer sporophytes are longer-lived, and anatomically and morphologically more complex than other gymnosperms

a. True b. False

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A patient suffers from a disease that slows fatty acid synthesis. What is a likely impact of this disease on nervous system function?  

A.  improved functioning due to a healthier weight B.  insufficient myelination and slow axon conduction rate C.  improved functioning due to better blood flow D.  weaker action potentials with smaller depolarization Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about fatty acids? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?  

Biology & Microbiology

The invasion of the land by amphibians posed a number of challenges requiring evolutionary innovations. Which one of the following does NOT match a challenge with a corresponding adaptation found in amphibians?

A. The force of gravity was greater without water's buoying effect, selecting for well-muscled legs. B. Eggs dry out in a terrestrial environment, selecting for the amniotic egg. C. Additional oxygen was needed for larger muscles, selecting for the partially-divided heart and pulmonary circuit. D. Gills tend to collapse out of the water, selecting for lungs and cutaneous respiration.

Biology & Microbiology

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Biology & Microbiology