The circle part about the circulatory sysytem
Answer:
sexual reproduction between two individuals from different continents
The Miller-Urey experiment is important because this was considered as the breakthrough in the study of origin of life, as to where and how exactly life began on earth and that it was possible to form organic molecules from inorganic molecules.
A.the adaptation they made will help them because they think when a shadow goes over them they would think its a predator so they just stop moving to avoid being eaten.
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