Jellyfish are best described as which of the following?

Jellyfish are best described as which of the following?

• A. A segmented worm that lives in soil
• B. A gelatinous marine animal that drifts in the ocean and uses tentacles to capture prey
• C. A crustacean with a hard exoskeleton
• D. A fish with gills and fins

Answer: (B)

Jellyfish are gelatinous drifting predators that use tentacles to capture prey. They are invertebrates called cnidarians, lacking a backbone and a true brain. Their bell-shaped body drifts with the currents, and they pulse to move. The tentacles are armed with stinging cells that stun or kill prey, helping them feed on small organisms in the water. The other descriptions describe entirely different groups: a segmented worm would have a long body divided into segments and is usually not marine jellyfish; a crustacean has a hard exoskeleton and jointed limbs; a fish has gills, fins, and a backbone.

Jellyfish are gelatinous drifting predators that use tentacles to capture prey. They are invertebrates called cnidarians, lacking a backbone and a true brain. Their bell-shaped body drifts with the currents, and they pulse to move. The tentacles are armed with stinging cells that stun or kill prey, helping them feed on small organisms in the water.

The other descriptions describe entirely different groups: a segmented worm would have a long body divided into segments and is usually not marine jellyfish; a crustacean has a hard exoskeleton and jointed limbs; a fish has gills, fins, and a backbone.