The cross-section of the body of an invertebrate is given below. Identify the animal, which has this body plan.
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a) |
Cockroach |
b) |
Roundworm |
c) |
Planaria |
d) |
Earthworm |
The cross-section of the body of an invertebrate is given below. Identify the animal, which has this body plan.
|
|||||||
a) |
Cockroach |
b) |
Roundworm |
c) |
Planaria |
d) |
Earthworm |
(c)
The given cross-section is of Planaria (acoelomate), a flatworm. Flatworms are devoid of cavities in between the alimentary canal and body wall, hence are acoelomate.