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Correct Answer: red blood cellsHemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing ...Read more
Correct Answer: HeartA pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate....Read more
Correct Answer: KenyaThe Maasai are a Nilotic ethnic group inhabiting southern Kenya and northern Tanzania. ... ManyMaasai tribes throughout Tanzania and Kenya welcome visits to their .... have demanded grazing rights to many of the national parks in both&nb...Read more