Tube within tube plan is exhibited by which of the following groups of animals?

• Arthropods

• Cephalochordates

• Annelids

• Mollusca

Digestion in Leucosolenia and other sponges is

• only extracellular

• only intracellular

• first extracellular, then intracellular

• first intracellular, then extracellular

Molluscan blood contains

• haemoglobin

• haemozoin

• haemocyanin

• All of these

Leveret is young one of

• eagle

• hawk

• deer

• None of these

5.

Non-reducing sugars have

• free CHO group and bound CO group

• free CO group and bound CHO group

• both CO and CHO free groups

• neither free CO nor free CHO groups

The repeating unit in glycogen is

• glucose

• fructose

• galactose

• cellulose

A cysticerous in pig muscles can remain alive for

• six months

• one year

• six years

• one month

Fluid mosaic model exhibits amphipathy because of

• glycoproteins

• phospholipids

• lipids

• glycolipids

Moulting in snakes is done by shedding

• comified cells

• stratified germinativum

• epidermis

• dermis

Caudal vertebrae of man are united to form a single

• synsacrum

• pygostyle

• coccyx

• None of these