Question

Animals that arise from cells arranged in two germ layers

Answer 1

[AI-generated answer — Bot GPT 3.5]

1. Cnidarians (jellyfish, corals, sea anemones)

2. Ctenophores (comb jellies)
3. Platyhelminthes (flatworms)
4. Porifera (sponges)
5. Mesozoa (tiny parasite animals)