Answer:
The use of left arm is more compared to right hand
Explanation:
In the given question, the anthropologist when examines the left and right arm he found that the left arm is thicker than the right arm.
The more thickness of the left arm signifies that the person uses his left arm for the muscular work as the more use of hand increases the deposition of the calcium phosphate and sulfate in bones along with other material which increases the thickness for the bones and increases the strength.
Thus, The use of the left arm is more compared to the right hand is correct.
Survival of the fittest is talking about when you have traits that will help you, you are more likely to live rather than not having those traits. For example, a bird that swims a lot has webbed feet so it has a better chance of surviving then a bird who does not have webbed feet
The answer is mitochondrion, it is called as "the power of cell"
Humans live in the layer of the atmosphere referred to as the troposphere. (Most of the mass of the atmosphere can be found in the troposphere.)
