I'm guessing changing gravity
Answer:
Reptiles
Explanation:
Vertebrate paleontology covers everything from the tiny, fish-like creatures, to the salamander-like ancestors of all land vertebrates, to dinosaurs, mammals, flying and swimming reptiles, etc.
Hope this helped
Answer:
Thunderstorms often result rain clouds lighting thunder tornados earth quakes or even power outages
Explanation:
Answer:
The nervous system and the endocrine system are both necessary to maintain homeostasis and keep the human body alive.
