Animal kingdom (asch)

Statement 1 - In alternation of generation Polyp form is followed by medusae form

Statement 2- Polyp reproduce medusae asexually and Medusae produce polyp sexually

• 1 and 2 both correct

• 1 correct, 2 incorrect

• 1 incorrect ,2 correct

• both incorrect

Which of the following statement is incorrect?

• The body of Platyhelminthes is circular in cross section

• In Porifera , archeocytes are totipotent cells

• Digestive system of platyhelminthes is incomplete

• Porifera has water canal system

Some members of platyhelminthes absorbs nutrients from host directly through

• flame cells

• calcium carbonate skeleton

• body surface

• comb plates

Fertilisation and development in Ctenophora is

• External, direct

• Internal , indirect

• internal , direct

• external , indirect

Polyp phase is absent in

• AURELIA

• HYDRA

• ADAMSIA

• OBELIA

Jelly fish is classified under Phylum

• Porifera

• Mollusca

• Cnidaria

• Echinoderm

Digestive system is complete in

• Taenia and Fasciola

• Obelia and Adamsia

• Ascaris and Fasciola

• Ascaris and Wuchereia

Among the following organism which is completely non- parasitic form?

• Tapeworm

• Sea anemone

• Leech

• Mosquito

a) They are Aquatic , mostly marine , sessile or free- swimming , radially symmetrical animals.

b) They have a central gastro- vascular cavity with a single opening , on hypostome.

c) Digestion is extracellular and intracellular

these features belong to which phylum?

• Porifera

• Coelenterata

• Aschelminthes

• Ctenophora

Well- developed alimentary canal and muscular pharynx are present in :

• Platyheliminthes

• Aschelminthes

• Annelida

• Arthropoda