MCQs of Biology – Classification

In which class of Coelenterate the polyp and Medusa both are found in one animal ?

The class of coelenterate, which exhibits polymorphism:

Function of a dactylozooid in polymorphic colony is:

Hydrozoa is distinguished from other coelenterates by:

Statocysts are found in:

Medusa, the reproductive stage, is found in:

Gonads of Obelia occur:

Obelia belongs to the class:

Metagenesis occurs in:

Most appropriate term to describe the life cycle of Obelia is:

Which of the following pairs is not correctly matched?

Which of the following is wrongly matched:

Scyphozoa are characterized by:

An example of scyphozoa is:

Jellyfishes , sea anemones and their relatives have_________ symmetry and their cells form________.

Which has no skeleton whatsoever?

Which of these is bioluminescent?

Which of the following animals is not segmented ?

In coelenterates, the mouth of medusa is located on:

Sea anemone belongs to the class:

Medusoid stage is absent in:

Coral reefs are formed by:

An example of soft coral is:

Corals are mostly found in the warm parts of:

A coral island with a central shallow lake is known as:

Which of the following is not a coral reef?

Which of the following is a danger to coral reef:

A sea anemone was found growing on gastropod shell inhabited by a hermit crab. This type of animal association is:

Which of the following is the probable reason for such an association:

Gastrovascular cavity is divided into compartments in:

Medusoid stage is completely absent in:

An animal which is diploblastic and radially symmetrical:

Linear mitochondrial DNA occurs in:

Insea anemone, the symmetry is:

Corals belong to the phylum:

Point out a non-parasite: