Which of the following is true with respect to oligotrophic lakes and eutrophic lakes?

A) Oligotrophic lakes are less subject to oxygen depletion.

B) Rates of photosynthesis are lower in eutrophic lakes.

C) Eutrophic lake water contains higher concentrations of nutrients.

D)Sediments in oligotrophic lakes contain larger amounts of decomposable organic matter.

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#Question id: 3029

#2. Cellular Organization

Which of the following obtain energy by oxidizing inorganic substances; energy that is used, in part, to fix CO2?

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#Question id: 5214

#11. Evolution and Behavior

What is the most probable explanation for the continued presence of pseudogenes in a genome such as our own?

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#Question id: 8710

#9. Diversity of Life Forms

A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of ________.

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#Question id: 10980

#7. System Physiology – Animal

Sympathetic stimulation of the heart

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#Question id: 23933

#Aptitude

Delhi University is a