Question

ourse of evolution, the development of the gastrovascular cavity(digestive system) with only one opening is first associated with: a) Protostomes and Deuterostomes, b) Just the Protostomes such as the earthworm, c) Only the Porifera (the sponge), d) Only the Deuterostomes such as the Vertebrates. e) The Cnidaria such as the jellyfish

Answer 1

The correct option is E ; The Cnidaria such as the jellyfish , The gastrovascular cavity is a basic animal phylum structure. It is responsible for both the digestion of food and the delivery of nutrients throughout the body.

There is just one opening to the outside world in the hollow. Food enters and waste exits through the same aperture, resulting in a two-way digestive tract.

In two main animal groups, the gastrovascular cavity is the principal organ of digestion and circulation: the Coelenterates or cnidarians (containing jellyfish and corals) and the Platyhelminthes (flatworms). The hollow can be substantially branched into a canal system.

Learn more about to gastrovascular visit here;

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