#11.) Phacops. It lived in the late Devonian Period (~400 million years ago).
#12.) Carbon-14 is a good radioactive isotope for determing the age of artifacts from a burial site thought to be associated with the most recent early humans because it is present in all organic matter (which humans have, of course).
#13.) 3, Devonian.
#14.) From the Devonian Period through the Triassic Period.
#15.) Cenozoic.
The main groups of unicellular organisms are bacteria<span>, </span>archaea<span>, </span>protozoa<span>, unicellular </span>algae<span>, and unicellular </span>fungi<span>. </span>
DNA We can change how cells interact
the offspring of crosses between parents with different traits?. Such as, the process by which peas are allowed to self-pollinate and produce offspring identical to themselves. A specific characteristic that varies from one individual organism to another. The offspring of crosses between parents with different traits. The chemical factors that are passed from one generation to the next.
the respiration rate will increase as temperature increases. An increase in temperature will minimize the amount of dissolved oxygen in the water and increase the metabolic rate of the goldfish, thus causing the goldfish's respiration rate to increase (“Hot waters make it hard for fish to breathe”).
