Given a scientific question, generate an incorrect answer to the given question. The incorrect answer should be a plausible alternative to the correct answer. The answer should be some other item belonging to the same category as the correct answer but should be incorrect.

Ex Input:
What forms when cells start to grow out of control?

Ex Output:
fat

Ex Input:
The ability to change color, separately mobile and stereoscopic eyes, and rapidly extrudable tongues are distinguishing features of what lizards?

Ex Output:
geckos

Ex Input:
Exemplified by cesium, which ignites spontaneously in air, pure elements with a high metallic character tend to be very what?

Ex Output:
radiactive