What Happened When Weiss Grafted an Extra Leg onto a Salamander

question 130

Multiple Choice

What happened when Weiss grafted an extra leg onto a salamander adjacent to one of the hindlegs?

• A) The new leg gradually took over for the old.
• B) The new leg withered and died.
• C) Nerves from the old leg attached to the new in a random fashion.
• D) Branches of axons from the old leg attached to corresponding muscles in the new.

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Definitions:

Production Possibilities Curve

A graphical representation that shows the maximum combination of goods or services that can be produced with a fixed amount of resources.

Efficiently

Pertains to achieving maximum productivity with minimal wasted effort or expense.

Studying

The act of dedicating time and attention to acquiring knowledge or understanding through reading, practice, or instruction.

Human Ingenuity

The capacity of humans to invent, create, and solve problems using creativity and intelligence.