Which of the following represents order of 'Horse'?
(1) Equidae
(2) Perissodactyla
(3) Caballus
(4) Ferus
Which among these is the correct combination of aquatic mammals?
1. Dolphin, Seals, Trygon
2. Whales, Dolphin, Seals
3. Trygon, Whales, Seals
4. Seals, Dolphin, Sharks