Many invertebrates have exoskeletons, but some have a fluid-filled internal cavity surrounded by muscle tissue called a ..... (Hint:jellyfish and earthworms have this type of skeleton.)

CIRCULATION IN DIFFERENT ANIMALS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Many invertebrates have exoskeletons, but some have a fluid-filled internal cavity surrounded by muscle tissue called a ____ (Hint:jellyfish and earthworms have this type of skeleton.)

A	hydrostatic skeleton
B	exoskeleton
C	bionic skeleton
D	endoskeleton

Explanation:

Detailed explanation-1: -Hydrostatic skeletons are fluid-filled columns, or cavities, inside invertebrates, including jellyfish, flatworms, nematodes, and annelids such as earthworms.

There is 1 question to complete.

AP BIOLOGY

ANIMAL PHYSIOLOGY

CIRCULATION IN DIFFERENT ANIMALS