Chapter 4: Animal Kingdom

a. A limbless animal – Icthyophis

b. A cold-blooded animal – Trygon

c. A warm-blooded animal – Macaca (monkey)

d. An animal possessing dry and cornified skin – Naja (Cobra)

e. An animal having a canal system and spicules – Euspongia

f. An animal with cnidoblasts – Hydra

a. A viviparous animal – Panthera leo

b. A fish possessing a poison sting – Trygon

c. A fish possessing an electric organ – Torpedo

d. An organ, which regulates buoyancy – Air bladder

e. Animal, which exhibits alternation of generation – Obelia

f. The oviparous animal with mammary gland – Echidna

a. Balanoglossus – Proboscis gland

b. Leech – Nephridia

c. Locust – Malpighian tubule

d. Liver fluke – Flame cells

e. Sea urchin – Absent

f. Pila – Metanephrida