What will you look to identify the sex of the following?

1.	Male frog – a copulatory pad on the first digit of the hind limb
2.	Female cockroach – anal cerci
3.	Male shark – claspers bone on pelvic fins
4.	Female Ascaris – sharply curved posterior end

In which one of the following, the genus name, its two characters and its class/phylum are correctly matched?

One example of animals having a single opening to the outside that serves both as mouth as well as anus is

(1) Octopus

(2) Asterias

(3) Ascidia

(4) Fasciola

Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?

1. Penguin is homeothermic while the remaining three are poikilothermic

2. leech is a fresh water form while all others are marine

3. Spongilla has special collared cells called choanocytes, not found in the remaining three

4. All are bilaterally symmetrical

Which one of the following kinds of animals are triploblastic?

(1) Flat worms

(2) Sponges

(3) Ctenophores

(4) Corals

Which one of the following statements about certain given animals is correct?

1. Round worms (Aschelminthes) are pseudocoelomates

2. Molluscs are acoelomates

3. Insects are pseudocoelomates

4. Flat worms (Platyhelminthes) are coelomates

Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

(1) Coelenterates (cnidarians)

(2) Aschelminthes (round worms)

(3) Ctenophores

(4) Sponges

Which one of the following pairs of animal comprises ‘jawless fishes’?

(1) Lampreys and eels

(2) Mackerels and rohu

(3) Lampreys and hag fishes

(4) Guppies and hag fishes

Peripatus is a connecting link between

(1) Ctenophora and Platyhelminthes

(2) Mollusca and Echinodermata

(3) Annelida and Arthropoda

(4) Coelenterata and Porifera

Which one of the following in birds, indicates their reptilian ancestry?

(1) Scales on their hind limbs

(2) Four chambered heart

(3) Two special chambers crop and gizzard in their digestive tract

(4) Eggs with a calcareous shell