prostomium

peristomium

clitellum

seta

none of the above

Tight junctions help to stop substances from leaking across a tissue.

Adhering junctions perform cementing to keep neighbouring cells together.

Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells.

Adhering junctions facilitate rapid transfer of ions, small molecules and sometimes big molecules between adjoining cells.

Blood is a connective tissue.

Eisenia

Lampito

Eudrilus

Lumbricus

None of these

14^th

18^th

16^th

Anywhere between 5^th to 9^th

1^st

Stomach

Calciferous glands

Typhlosole

Respiratory aperture

Septal nephridia

A single female genital pore is present.

A pair of male genital pores are present.

A pair of female genital pores are present.

Both 1 and 2

Both 2 and 3

7^th abdominal segment

Junction of foregut and midgut

Junction of midgut and hindgut

4^th - 6^th abdominal segments

2^nd to 6th abdominal segments

6^th

15^th

3^rd

4^th

5^th

Tapeworm

Cockroach

Frog

Lizard

Star fish

first digit of the forelimbs

second digit of forelimbs

first digit of the hindlimbs

second digit of hindlimbs

none of the above

Hind limbs end in five digits.

Forelimbs end in four digits.

Male frogs can be distinguished by the presence of copulatory pad on the first digit of the forelimbs.

On either side of eyes a membranous tympanum receives sound signals.

Frog drinks water only once a week.

Ametabolous

Pseudometabolous

Holometabolous

Hypermetamorphosis

Paurometabolous

Ctenophores

Sponges

Cnidarians

Molluscs

Aschelminthes

Apis

Bombyx

Laccifer

Locusta

Limulus

Intercellular

Intracellular

Extracellular

Lumenal

None of these

Saccoglossus

Ascidia

Amphioxus

Myxine

None of these