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

Which one of the following is not a characteristic of phylum-Annelida?

(1) Closed circulatory system

(2) Segmentation

(3) Pseudocoelom

(4) Ventral nerve cord

Which one of the the following phyla is correctly matched with its two general characteristics?

(1) Arthropoda − Body divided into head, thorax and abdomen and respiration by mouth

(2) Chordata − Notochord at early stage only and separate anal and urinary openings to the outside

(3) Echinodermata − Pentamerous radial symmetry and mostly internal fertilization

(4) Mollusca − Normally oviparous and development through a trochophore or veliger larva

Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?

Which one of the following pairs is mismatched?

What is common between parrot, platypus and kangaroo?

(1) Homeothermy

(2) Toothless jaws

(3) Functional post-anal tail

(4) Oviparity

Which one of the following is a matching pair of a body feature and the animal possessing it?

Which of the following pairs are correctly matched?

(1) A, C and D

(2) B, C and D

(3) Only A and D

(4) Only A and B

What is true about Nereis, Scorpion, Cockroach and Silver fish?

(1) They all have jointed paired appendages

(2) They all possess dorsal heart

(3) None of them is aquatic

(4) They all belong to the same phylum