Which statement correctly describes the muscular system of a flatworm?
Which statement accurately describes the muscular system of a flatworm?
- It consists of three types of muscle tissue.
- It is composed of two layers of muscle.
- All muscles are attached to a central bone.
- All muscles are involuntary.
3 Answers
It is made up of three types of muscle tissue. Because:
Flatworms are flattened and have bilateral symmetry.
They are triploblastic (have 3 embryonic tissue layers: ectoderm, mesoderm, and endoderm) and therefore have organ-level of organization. There is no body cavity, so they are acoelomate.
Flatworms have a gastrovascular cavity with one opening (a sac-like gut).
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