Which of the Following Is a Possible Advantage for the Environment

question 7

Multiple Choice

Which of the following is a possible advantage for the environment of having farmers use plants that genetically produce Bt toxin?

• A) Harvesting plants with these genes is less disturbing to the soil layers where they are planted.
• B) Plants with genes for the toxin are eaten less often by insects, and therefore less insecticide is needed.
• C) Plants with these genes must be sprayed with the organism, but need much less than other plants.
• D) Plants that produce Bt toxin must be grown from new seeds each season, and therefore fewer of them are planted.
• E) Bt toxin is advantageous to many species of invertebrates that grow in the same fields.

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Definitions:

Crutch Tips

Rubber ends attached to the bottom of crutches to prevent slipping and provide stability.

Flexion

The action of bending a limb or joint, reducing the angle between the bones of the limb at the joint.

Axilla

The area on the human body directly under the joint where the arm connects to the shoulder, commonly known as the armpit.

Three-Point Crutch Gait

A method of walking or moving using crutches where two crutches and the injured leg form three points of contact with the ground.