The two phases in the life cycle of coelenterates are the polyp stage and the medusa stage. The polyp stage is characterized by a tubular body with tentacles facing upwards, while the medusa stage is characterized by a bell-shaped body with tentacles facing downwards. These two stages alternate in the life cycle of coelenterates.
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no,deuterostomes only develop their nus fist.
deuterostomes
Deuterostomes
Bivalves are protostomes. They belong to the phylum Mollusca, which is characterized by protostome development. This means that during their embryonic development, the blastopore becomes the mouth.
Deuterstomes
organisms with a complete gut
deuterostomes
Deuterostomes. All chordates such as birds and mammals are deuterosomes.
Echinodermata
The phylum that have a true coelom and are deuterostomes are the phylum Chordata. This phylum includes animals with a notochord, dorsal nerve cord, pharyngeal slits, and post-anal tail at some stage in their development. Examples of Chordata include vertebrates such as fish, amphibians, reptiles, birds, and mammals.
Protostomes .
No, sponges are not deuterostomes. Deuterostomes are a distinct classification of animals characterized by a particular pattern of embryonic development, which includes echinoderms and chordates such as humans. Sponges belong to the phylum Porifera, and they are considered one of the most basal and primitive animal groups.