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