Which of the following represents a unique characteristic of many animals that, in general, distinguishes them from the members of other kingdoms?

the answer is: the one characteristic in the animal kingdom is that all give birth to offspring of their own gnomes.

Explanation:

For the same reason humans can only reproduce other humans. cainines can only reproduce other dogs..a canine cannot reproduce a kitten & vise-versa...

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

its temperature is increasing. this causes molecular vibrations to increase.