Answer is C. The greatest biomass is always the lowest level in the trophic system: phytoplankton and bacteria.
B. Lactase
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Because any other substance couldn't carry the heat and the amount of surface area gives it more of an opportunity to cool down
Toxic inhalation and occluded airway
The cricket frog plays an important role in limiting the spread a mosquito borne illness like west Nile virus and malaria, Because the cricket frog will consume the insects that carry them.