Answer:
DNA
Explanation:
you can tell if the DNA is within the nucleus in the cell then it is eukaryotic but if the DNA is free floating in the cell then it's prokaryotic
Answer:
a. By Calculating magnetic reversals.
Explanation:
They determine the age of the ocean floor by examining magnetic fields in the planet Earth.
Clown fish and sea anemones.
(4) organisms in a changing environment must adapt to acquire necessary traits and survive