Answer:
Your answer is probably A). If you find a fossil of an armored fish in layer A, and you find a fossil of a trilobite in layer B (five layers deeper), then you can safely assume that the trilobite is older than the armored fish.
This type of organism is called an autotroph.They are organisms capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy
Va graph will say that the amount of viruses taken it will 1000 viruses
1.) everything that can be observed or explained scientifically. - natural phenomenon
2.) a well-supported explanation of all the evidence related to a natural phenomenon. - Theory
3.) the procedure of scientific inquiry used to investigate natural phenomena. -scientific method