The answer is A. They have similar DNA sequences, That is the only way to determine if they share a common ancestor. It´s all in the blood.
Answer:
Convection currents can make tectonic plates in the mantle shake around. If there is an area with a lot of convection currents, the tectonic plates will break apart and form a disputed area. When the tectonic plates try to combine again, a earthquake is at stake.
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The correct answer is: There are 20 primary teeth, and by 24 months of age most children have all 20.
Primary teeth also known as deciduous teeth, milk teeth, are the first set of temporary teeth in the growth development of humans. They develop during the embryonic stage of development, become visible in the mouth during infancy (erupt) and usually get replaced by permanent teeth around age six (the first tooth). The primary teeth consist of 4 central incisors (one in each quadrant), 4 lateral incisors, 4 canines, 4 first molars, and 4 secondary molars.
The correct answer is letter A
