Answer: La mayoría de los procariotas llevan una pequeña cantidad de material genético en forma de una sola molécula, o cromosoma, de ADN circular. El ADN en los procariotas está contenido en un área central de la célula llamada nucleoide, que no está rodeada por una membrana nuclear.
<span>The answer is valves. One </span><span>feature that the entrances and exits to the heart need in order to maintain this flow pattern is the valves. E</span><span>ntrances and exits to the heart may need valves in order to maintain this flow pattern. There are valves that control blood flow to the ventricles, and valves that control blood flow out of the ventricles.</span>
Answer:
lithosphere
Explanation:
Earth's lithosphere includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. Further there are two types of lithosphere mainly as oceanic and continental lithosphere.