Question

cnidarians have an incomplete gut. everything goes into and out of one opening, the mouth. what travels through this opening? (select all that apply.) thoughts food waste reproductive cells

Explanation:

• Thoughts: Cnidarians lack a nervous system complex enough for thoughts, so this is incorrect.
• Food: Cnidarians use the mouth to ingest food for digestion, so food travels in.
• Waste: With an incomplete gut, undigested waste exits through the same mouth opening.
• Reproductive cells: Some cnidarians release reproductive cells (gametes) through the mouth during reproduction.

Answer:

B. Food, C. Waste, D. Reproductive cells