Question

name a coelenterate which can kill fish and harm human beings​

Answer 1

Purple sea fan. All cnidarians have the potential to affect human physiology owing to the toxicity of their nematocysts. Most are not harmful to humans, but some can impart a painful sting—such as Physalia, the Portuguese man-of-war, and sea anemones of the genus Actinodendron.

Answer 2

Jellyfish could be a potential killer of fishes and harm to human beings.

• Coelenterates come under the phyla Cnidaria.

• Cnidarians are coral animals like jellyfishes, sea anemones, sea pens, etc.

• They are asymmetric, lack the presence of coelom, and are diploblastic in nature.

• Jellyfish have the potential to kill fish and harm people by using their tentacles.

• These tentacles are composed of nematocytes that are poisonous and cause paralysis to the prey.