The only truly flying mammals are _______.
-
archeopteryx
-
ptero
-
bat
-
None of the above
C
Correct answer
Explanation
Bats are the only mammals capable of powered flight. Archaeopteryx was a bird-like dinosaur, not a mammal. "Ptero" appears to be a misspelling or incomplete reference to pterosaurs (extinct reptiles), not a mammal. Flying squirrels and other mammals can only glide.