Answered: The cnidocytes found in hydras and…

The cnidocytes found in hydras and jellies are; Cells that secrete digestive enzymes Stinging cells Nerve conduction cells

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter28: Invertebrates

Section: Chapter Questions

Problem 7RQ: Cnidocytes are found in phylum Porifera phylum Nemertea phylum Nematoda phylum Cnidaria

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Question

The cnidocytes found in hydras and jellies are;
Cells that secrete digestive enzymes
Stinging cells
Nerve conduction cells

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The defining feature of the cnidarians is that they all have nematocytes (cnidocytes). These cells; Are nerve cells that allow the cnidarians to sense the environment Are cells lining the gastrovascular cavity Are filter feeding cells on the tentacles Are stinging cells on the tentacles
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Clown fish are often found swimming within the tentacles of sea anemone whereas other fish avoid them at almost all cost. Which statement below is the best explanation for this observation? The spicules of the sea anemone cannot penetrate a slime layer surrounding a clown fish but other fish do that have that neutralizing slime layer. Clown fish are good at maneuvering between the spines of the sea anemone and use them for camouflage. Clown fish are attracted to the cnidocytes of the sea anemone as their source of food. Clown fish are immune to the sting of the nematocyst of the sea anemone but other fish are not.
hydra Most animals have a(n) system to deliver and nutrients to cells. gastrovascular cavity foot Such systems also take and wastes away from cells. carbon dioxide In each cell is exposed to water and can independently digestive exchange gases, carry out digestion, or eliminate wastes. охудen The cells of the hydra use to pass nutrient molecules to ions other cells. circulatory In contrast, planaria possess a trilobed throughout the body to allow for diffusion of molecules between cells. that branches diffusion
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