Answer:
Bactrian camels have two humps rather than the single hump
Explanation:
Because their bodies tell them that they need more oxygen and so breathe faster, and try and get the oxygen their body requires and depends on.
Earth's mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Heat liberated by the core is transferred into the mantle where most of it (> 90%) is convected through the mantle to the base of the lithosphere.
Answer:
They absorb the food molecules that result from the external digestion.
Explanation:
