A) Four-chambered heart. B) Two-chambered heart. C) Three-chambered heart. D) Single chamber heart.
A) Fish. B) Reptiles. C) Amphibians. D) Mammals and birds.
A) Feathers are mainly decorative. B) Flight and insulation. C) To scare predators. D) To help with walking.
A) By varying their feather count. B) Through metabolic processes. C) Using external sources like sun. D) By burrowing into the ground.
A) Feathers. B) Fur. C) Skin. D) Scales.
A) Taste. B) Hearing. C) Vision. D) Smell.
A) Monotremes. B) Carnivores. C) Placental mammals. D) Marsupials.
A) Nares. B) Vagina. C) Cloaca. D) Urethra.
A) Migrating long distances. B) Laying eggs in water. C) Building nests in trees. D) Parental care of young. |