A type of trilobite is used as an index fossil. These fossils were made around 540 million years ago. A scientist finds a trilobite fossil within layer 3 in the diagram (picture).

What can the scientist conclude from this finding?

A. Fossils from layer 9 are the newest in the diagram.

B. All the fossils in this diagram are at least 540 million years old.

C. Layer 1 has the newest fossils in the diagram.

D. Fossils in layer 5 are less than 540 million years old.

Mg is used to measure mass

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.

Where is the picture at

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