Final answer:
The false statement is that ant wings are of equal length. Ants have longer forewings compared to their hindwings, while termites have wings of equal length. Ants also have constricted waists, and termite antennae are straight. So Option B.
Step-by-step explanation:
The statement that is false regarding differences between ants and termites is: B. Wings are of equal length on ants. In reality, ants, when they have wings, possess forewings that are longer than their hindwings. Termite wings, however, are of equal length, as stated in option A.
Furthermore, ants indeed have a constricted waist, known as a petiole, which makes option C true. Lastly, termite antennae are in fact straight, which makes option D true as well.
Therefore, the correct answer to which characteristic is false describing differences between ants and termites is the statement about ant wings being of equal length.
So option B.