Question Answer
What is the difference between bone and cartilage? Bone is harder than cartilage. Bone provides support while cartilage serves as a cushion.
What is a vertebrate? An animal with a backbone, skull, and live skeleton.
What is the difference between arteries and veins? Arteries carry blood away from the heart, but veins carry blood to the heart.
What two things make up the central nervous system? The brain and the spinal cord.
What does a swim bladder do? As it fills with air, the fish will rise in the water.
What ways do endothermic animals regulate their body temperature? Heavy fur; thick feathers; sweating; panting; small ears to hold in heat; expanding blood vessels that cool blood at the surface
What are the three types of mammals? Placental mammals; monotremes; marsupials