An outside source of energy (ATP) is required for 

A. osmosis.
B. diffusion.
C. active transport.
D. None of these answers is true.


C. active transport.

Biology & Microbiology

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Tool use is unique to humans

A. true B. false

Biology & Microbiology

Viroids cause disease in

A. animals. B. plants. C. bacteria. D. fungus.

Biology & Microbiology

Inserting a cloned gene for a plasma membrane transporter into crop plants could lead to  

A.  the ability of a plant to produce its own micronutrients. B.  extra uptake of minerals that would fortify the crop for human consumption. C.  the evolution of nodule-formation on the crop plant. D.  elevated CO2 levels in the atmosphere. E.  plants taking up enough minerals that they no longer need to photosynthesize.

Biology & Microbiology

The process of gene expression includes two steps:

__________ and __________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology