If reptiles are a class of tetrapod vertebrates that produce eggs with a waterproof shell, then reptiles are a class of tetrapod vertebrates that produce eggs with a what?  Answer choices: - kinetic energy  - Chemical energy  - the body's largest organ  - heat energy  - Epidermis  - epidermis and dermis  - waterproof shell  - rapid expansion
waterproof shell

If sucrose attracts sperm to the egg for fertilization, then sucrose attracts sperm to the what for fertilization?  Answer choices: - egg  - ovum  - omelet  - nest  - male  - ova  - uterus  - pistil
egg

If actions can be learned through play, then how can an animal learn actions?  Answer choices: - movement  - Chemical energy  - by fighting  - through play  - by eating  - when they sleep  - stamina  - Riding a bike

through play