A phylum which are multicellular, having Bilateral symmetry and without body cavity is

1.Platyhelminthes

2.Aschelminthes

3.Nemathelminthes

4.Both 2 and 3

Hermaphroditism is found in which phyla?

(1) Ctenophora

(2) Platyhelminthes

(3) Porifera

(4) All of these.

Some salient features and phyla of organisms are given below. Select the option which shows the correct combination of organism, its phylum and salient features.

Ctenophorans are commonly referred to as

(1) Flatworms

(2) Comb jellies

(3) Sea anemone

(4) Cnidaria

Radial symmetry is seen in

(1) Mollusca

(2) Chordata

(3) Porifera

(4) Ctenophora

Which of the following animal has a diploblastic level of organisation?

(1) sponges

(2) Adamsia

(3) Ctenoplana

(4) both (2) and (3)

Development involves an indirect or larval form in which of the following?

(1) Pleurobrachia

(2) Euspongia

(3) both (1) and (2)

(4) none of the above

The phylum with exclusively marine animals is:

1. Porifera

2. Cnidaria

3. Ctenophora

4. Platyhelminthes

Which of the following is not a feature of Ctenophora?

1. Diploblastic organisms with tissue level of organization

2. Absence of Cnidocytes

3. Presence of internal ciliated comb plates

4. Bio-luminescence well marked in some members

Ctenophores are commonly known as

1.Sea walnuts

2.Comb jellies

3.Cnidarians

4.Both 1 and 2