Hypoxic environments have very little oxygen in them. In the most extreme cases, they may have no oxygen at all. What process must cells in these environments use to
get the energy needed for life processes out of the food molecules they take in?
A photosynthesis C. anaerobic respiration
B. aerobic respiration D. Osmosis

The process cells must use in hypoxic environments to obtain energy from the food molecules they take in is anaerobic respiration (option C).

Explanation:

Anaerobic respiration is the process of energy production that cells carry out in the absence of oxygen. This type of reaction requires an electron acceptor other than oxygen.

Some microorganisms, such as bacteria, can carry out their metabolism in environments with little or no oxygen. In these organisms, the energy-producing pathways are anaerobic respiration and fermentation reactions.

The other options are not correct because:

    A. Photosynthesis: occurs in plants, and is based on the conversion of solar energy into chemical energy.

    B. Aerobic respiration: requires the presence of oxygen, the final electron acceptor of the electron transport chain.

    D. Osmosis: is a transmembrane transport mechanism.

not sure if this what   you'r looking for would be percent composition

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