Select the set of incorrect statements. I. The circulatory system in Platyhelminthes has a single opening. II. Annelids are the first animals to have true coelom and metamerism (true segmentation). II

Question

Select the set of incorrect statements.

I. The circulatory system in Platyhelminthes has a single opening.
II. Annelids are the first animals to have true coelom and metamerism (true segmentation).
III. The space between the hump and the mantle is called the mantle cavity in which gills are present.
IV. Most of the echinoderms are bisexual.

TestHub · Accepted Answer

I. The digestive system in Platyhelminthes has a single opening. It is a blind sac body plan, i.e. mouth and anus are represented by the same opening. IV. Most of the echinoderms are unisexual.

Botany - Animal Kingdom Question with Solution | TestHub

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