1.Fossils
2.Location
Scientist use fossils to study body structures and compare them.
Scientist use location to study location to see how organisms used their features to cross water or survive in different temperatures.
Repeat the epinephrine injection after consulting with medical control.
The amount of plants in the region would grow, but the amount of carnivores who eat the herbivores would diminish.
Answer:
hydrogen, oxygen, carbon and nitrogen
I did 4 instead :')
Explanation:
I'm guessing the answer is a