3: hominids are the group of primates that includes humans, gorillas, and chimpanzees. in 1997 a team of scientistsdiscovered three fossilized hominid skulls and other artifacts found at the dig site in ethiopia. since it is difficult todetermine the age of once living organisms, the scientists used radioactive dating on the igneous rock thatsurrounded the remains to determine their age.

why would scientists choose radioactive dating to determine the age of the igneous rock?

a: this method is an easier way to determine the age of rocks.
b: the procedure allows for the rock samples to be preserved.
c: this process provides scientists with the exact age of rocks.
d: the rate of decay in the rock provide an accurate way to calculate age.

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

c is the answer to this question. altitude affects the weather because air molecules evaporate.