During the life-cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respectively

(1) redia and miracidium

(2) cercaria and redia

(3) metacercaria and cercaria

(4) miracidium and metacercaria

Delicate hair-like feathers which remain sparsely distributed over the body are

(1) coverts

(2) filoplumes

(3) plumules

(4) remiges.

Which one feature is common to leech, cockroach and scorpion?

(1) Nephridia

(2) Ventral nerve cord

(3) Cephalization

(4) Antennae

National bird of India is

(1) Psittacula

(2) Passer domesticus

(3) Pavo cristatus

(4) Parakeet

Which of the following have porous body and have Cellular Level of Organization?

(1) Aurelia and Obelia

(2) Adamsia and Euplectella

(3) Leucosolenia and Spongilla

(4) Sycon and Hydra

Which animal has the longest gestation period?

(1) Shark

(2) Walrus

(3) Elephant

(4) Dog

Kingdom Animalia is characterised by

(1) direct dependence on autotrophs

(2) indirect dependence on autotrophs

(3) absence of chlorophyll

(4) absence of cell wall

Which of the following is a correct match?

(1) Frog — External ears

(2) Earthworm — Muscular gizzard, typhlosole

(3) Human — Fat globule, 10 pairs of cranial nerves

(4) Cockroach — Chilopoda

One of the world's most poisonous fish toxins is released by

(1) clown fish

(2) sword fish

(3) eel fish

(4) puffer fish

Stinging capsules (nematocysts) are found in

(1) wasp and honeybee

(2) scorpion and cobra

(3) sea pen and sea fan

(4) cactus and Venus flytrap