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.

Input: Consider Input: The types of white blood cells that arrive at an inflamed site depend on the nature of what?

Output: genes

Input: Consider Input: Glasses are mixtures of oxides, the main component of which is silica (sio2). silica is called the glass former, while additives are referred to as this?

Output: natural modifiers

Input: Consider Input: What type of locomotion do humans have?
Output: crawling