Answer:
Genetic drift
Explanation:
Genetic drift is an evolutionary mechanism that in a population it changes allelic frequencies over generations just by chance. For this reason, small populations are more susceptible to be affected by genetic drift than bigger populations.
In this example, Indiana Jones visited a small village of 50 people and over generations allele A probably was lost just by chance, or by genetic drift.
Answer:
D. An added force of 20N to the side of the hill
Explanation:
The answer is D! living things are made up of units called cells.
The layers above would be not as old and the layers below would be the older layers.