How many animals from the following are warm- blooded with 4-chambered heart and oviparous condition?
[Corvus, Struthio, Macropus, Ornithorhynchus, Balaenoptera, Pteropus, Delphinus, Psittacula, Chelone, Calotes, Crocodilus]

How many of the following show vivipary? Pteropus, Camelus, Delphinus, Macropus, Ornithorhynchus, Neophron, Aptenodytes, Rattus, Equus

In the given list, how many animals are oviparous:- Neophron, Balaenoptera, Bufo, Naja, Pteropus, Scoliodon, Hippocampus, Felis, Corvus, Hemidactylus.

How many among following characteristics are common in betweenr eptiles and birds? a. Four-chambered heart. b. Scales c. Homoiothermous (warm-blooded) d. Dioecious and internal fertlisation e. Ovipary and direct development.

Select the correct statement from the following: • Monocyte is a granulocyte. • Frog has 4 chambered heart. • Blood is a tissue. • The respiratory organs of insects are gills.

Consider the following statements? (a) Before birth, foramen ovale allows the blood to pass from right atrium to left atrium , thus bypassing the pulmonary circulation , (b) Heart is protected by a double walled pericardium , (c) The muscle fibres present in heart are different from smooth muscles in being mesodermal in origin , (d) Nodal tissues like AVN, SAN are specialised neural tissues which are distributed in heart. How many among the statements mentioned above are correct?