Fossil record of the first possible bipeds is the evidence exists that state humans are evolved in Africa. Modern humans arose in Africa at least 250,000 to 300,000 years ago, fossils and DNA are the evidence that reveals. Scientists have been unable to pinpoint a more specific homeland because the earliest Homo sapiens fossils are found all across Africa.
Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa. Most scientists currently recognize some 15 to 20 different species of early humans found from Africa.
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Answer:
Sensory cells last approximately two weeks and are renewed frequently.
Explanation:
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B. Is what the scientists manipulate in the experiment.
Explanation:
The Independent variable is not dependent, or doesn't rely, on another variable in the experiment. So, it would make the most sense that they would manipulate the Independent so that they can watch and see how the dependent variable reacts to the manipulation, or the change, in the independent variable.
The storage areas are called : Reservoirs Reservoirs can both be made by nature or crafted by men. In order to make our lives became easier , we could create our own reservioir by digging up an open land to form a space that could contain water when its raining, as a back up resources when the lake or rivers are drying up
Wind shear can result in the formation of a tornado
