Question

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multiple choice

1. which is a proper group of cnidarians? (1 point)

jellyfish, box jellyfish, nudibranchs
squid, snail, jellyfish, coral
portuguese man o war, coral, sea anemone
box jellyfish, sea star, coral

Explanation:

Cnidarians are aquatic invertebrates defined by stinging cells (cnidocytes) and radial symmetry.

• Nudibranchs, squid, snails, and sea stars belong to other phyla (mollusks, echinoderms), not cnidarians.
• Portuguese man o' war, coral, and sea anemone all have the key traits of cnidarians.

Answer:

Portuguese man o' war, coral, sea anemone