Answer is B) 1, 3, 2
Fish with craniums naturally preceded the evolution of sharks, since sharks have craniums. Sharks must have evolved from a cranium-wielding ancestor.
Sharks evolved about 450 million years ago, before land vertebrates (animals with spines and skeletal systems) even existed. Mammals evolved about 100 million years later.
Answer:
you can place scientific terms around the classroom and the kids must work in groups to find the cards. Then you let the kids read the terms at the end.
Explanation:
The salmon will not starve as its prey increased.
The smelt is not the predator of the alewife.
The answer is D.
Biomass, its used to power cars
