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