It is a measurement of population per unit area or unit volume......
<span>Enzymes are biological molecules that speed up the rate of almost all the chemical reactions that happen within cells. They are very important and serve important functions to the body like helping with digestion and metabolism.</span>
Answer:
False
Explanation:
Amphibians evolved about 365 million years ago from a lobe-finned fish ancestor. As the earliest land vertebrates, amphibians were highly successful for more than 100 million years until reptiles took over as the dominant land vertebrates. The earliest well-known amphibian, Ichthyostega, was found in Late Devonian deposits in Greenland, dating back about 363 million years. The earliest amphibian discovered to date is Elginerpeton, found in Late Devonian rocks of Scotland dating to approximately 368 million years ago.
Answer:
scientists use ritcher scale for measuring extent of shaking, or intensity, of an earthquake.