If the energy of the sun no longer reached Earth, the primary productivity of which of the following ecosystems would be least affected?

A. taiga
B. temperate rain forest
C. deep sea hydrothermal vent
D. desert
E. coral reef


Answer: C

Biology & Microbiology

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Indicate whether the statement is true or false

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The production of sterile male ligers is an example of __________.

A. A post-zygtic barrier B. The founder effect C. A pre-zygotic barrier D.. Sympatric speciation

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Which of the following is most like the formation of identical twins?

A) cell cloning B) therapeutic cloning C) use of adult stem cells D) organismal cloning

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Polyploidy as a mechanism of speciation occurs most commonly in which of the following life forms?

a. polychaete worms b. fungi c. plants d. salamanders e. molluscs

Biology & Microbiology