Tubipora is organ pipe coral included in class Anthozia.

Correct Option: A

Tubipora is organ pipe coral included in class Anthozia.

Organisms passively floating on the surface of water are planktons. Floating animals are called zooplanktons and plants are phytoplanktons.

Correct Option: A

Organisms passively floating on the surface of water are planktons. Floating animals are called zooplanktons and plants are phytoplanktons.

The eggs of Taenia pass out through human faeces which is eaten by pigs, eggs and develops into onchosphere, then to cyst larva in the muscle of pig; The entry stage into secondary host (pig) is onchosphere.

Correct Option: A

The eggs of Taenia pass out through human faeces which is eaten by pigs, eggs and develops into onchosphere, then to cyst larva in the muscle of pig; The entry stage into secondary host (pig) is onchosphere.

Taenia saginata lacks rostellum and scolex hooks.

Correct Option: B

Taenia saginata lacks rostellum and scolex hooks.

In poriferans (sponges) choanocytes (collar cells) form lining of spongocoel. Flagella present in collar cells provide circulation to water in water canal system.

Correct Option: B

In poriferans (sponges) choanocytes (collar cells) form lining of spongocoel. Flagella present in collar cells provide circulation to water in water canal system.