less toxic. 

more toxic. 

equally as toxic. 

unpredictable in toxicity. 

Only natural cross-pollination has

produced the resilient crops we have today.

Recombinant DNA technology is not

used on crops.

Bacterial genes can be introduced

into plants.

There is no way to make crops

resistant to pests.

a bacterium

a protozoan

yeast

a virus

a flea

capsid and a nucleic acid core

envelope

capsid

nucleic acid core

Viruses are responsive to their

environment.

No one considers viruses to be

living.

They can rapidly replicate in and

metabolize nutrients from the environment.

They possess genomes with

instructions for replicating themselves.