B. Mutualism, because both parties are benefiting from the other.
Answer:
I think a because fossils do stay for a very long time ribbit
Answer:
The fuel consumption of public transportation is less per passenger.
He is incorrect because a catalyst is a substance that speeds up a chemical reaction so if there is no reaction to begin with a catalyst will not due anything.
Answer:
Conifers are gynosperm which reproduce through the exposed seeds found in the cones
