Better senses have a positive impact on an animal 's survival.
An antelope has such a fine sense of hearing that it senses danger long in advance.
An antelope's excellent hearing helps it survive.
Which characteristic helps an antelope survive?
Options:
(1) exoskeleton
(2) poor sense of smell
(3) bad manners
(4) protective bony armor
(5) Endocrine system
(6) excellent hearing
(7) bad vision
(8) Males and females