Answer:
Graptolites lived from the Cambrian Period, about 510 million years ago, disappearing in the Carboniferous Period, around 320 million years ago.
hope this helps!
For any terrestrial planet in the solar system, the core would be the densest layer, and the crust would be the least dense layer.
Answer:
legumes
plants they eat
Explanation:
Legumes have bacteria attached to it to allow for nitrogen absorption
the bacteria provide the plant with nitrogen, then the plant is eaten (bacteria can no longer provide more nitrogen if eaten).
Answer:
Specie
Explanation:
They are a group that interbreed with each other, only, since they cannot produce fertile offspring with those of another species.
