Answer:
The respiratory centers that control your rate of breathing are in the brainstem or medulla. The nerve cells that live within these centers automatically send signals to the diaphragm and intercostal muscles to contract and relax at regular intervals.
Answer:
D. All of the above
Explanation:
Neanderthal man (<em>Homo sapiens neanderthalensis</em>):
Their fossils were first obtained from Neander valley in Germany which belonged to late pleistocene epoch. Later many other fossils were recovered from various countries by different paleontologists. Neanderthal man had slightly prognathus face. They walked upright like us and has low brows, receding jaws and high domed heads. The main point of difference from us was that they were much stockier than we are. Their cranial capacity was 1300-1600 cc. They were cave dwellers with humped back. They were also skilled in hunting and skilled predators. The neanderthal man was cannibal and they fashioned the skin into clothing to protect themselves from harsh climate conditions. Its also believed that they buried their dead ones with flowers and tools. <em>Homo sapiens neanderthalensis</em> did not evolve into <em>homo sapiens</em>. <em>Cro magnon</em> was the direct ancestor of the living modern man.
Answer:
Archaea
Explanation:
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