C : carbon dioxide and methane
The reason chameleons change color is to allow them to camouflage where ever they are so that they can hide better from predators.
Answer:
fossils, anatomy, molecular biology, direct observation, biogeography
Explanation: i think theres 5 . hope this helpss
Due to the fact that the white blood cells can change their shape and squeeze in through smaller parts of the blood flow, they have the ability to protect the immune system from any infections. They able to move easily in the blood flow, meaning that they can stop any infections or illnesses that would have came the person's way. This is why a person that has more white cells is not ill that often because there are more cells able to reach that particular place of infection.
