QUESTION 1 Which of the following statements about heterotrophic pathways (mechanisms) is INCORRECT?

QUESTION 1

Which of the following statements about heterotrophic pathways (mechanisms) is INCORRECT?

A. Aerobic respiration is the pathway that releases the least energy 

B. Anaerobic respiration takes place where oxygen isn't present, such as in muds on the seafloor and lake bottoms, and in guts of animals.

C. Anaerobic heterotrophs, especially bacteria, substitute other oxidized inorganic compounds in lieu of oxygen to decompose the organic matter.

D. Certain fungi, such as yeasts and some bacteria, perform fermentation, an important process that breaks down large, complex organic compounds into simpler ones that can be used by other heterotrophs.

Which of these processes that can remove CO2 from the atmosphere operates on much longer time scales than the rest?

A. reforestation

B. fertilization of forests

C. dissolution of CO2 in the oceans

D. dissolution of deep-sea carbonates

E. the weathering of continental rocks

Soil is formed by the weathering of rocks and minerals, and by the input of organic material.For example, ice wedges can form in small cracks in a rock, breaking it in two---this is called __________ or mechanical weathering. Another example is root growth that wedges cracks open and organic acids dissolves some minerals---this is called _____________