How does an elephant extend a proboscis that has no bone structure in it?
A)Muscles forcibly expand
B)The trunk is an empty chamber and water is forced into it
C)The elephant trunk is an example of a muscular hydrostat
D)This is a hydraulic system similar to what was found in echinoderms
E)Antagonistic muscles operate in pairs across flexible cartilage

Question

Quizplus · Accepted Answer

The elephant trunk is an example of a muscular hydrostat, which means that it is made up of muscles that can contract and elongate without any bony support. This allows for extremely flexible movement and manipulation of objects.

How Does an Elephant Extend a Proboscis That Has No