The part of the microscope that supports both the ocular lens and the revolving nosepiece is called the <u>head.</u>
The microscope is a device that is used to examine smaller-sized objects that can not be seen with bare eyes.
The most commonly used microscopic devices are the electron microscope and light microscope.
Due to its high resolving power and powerful lenses, it can see small objects of sizes ranging between 10^-3 millimeters and 0.2 micrometers.
Moreover, it is used to see objects at uni and multi-cellular level allowing the scientists to observe organelles such as mitochondria and nuclei in a cell.
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Answer:
4.543 billion years
Explanation:
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C)Human activity
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Answer:
A neutral.
Explanation:
Mutation: It is defined as any alteration that occurs in the nucleotides sequence of organisms. It can be beneficial, harmful, and neutral.
A neutral mutation: It is defined as the no harmful and no beneficial effect on the survival and reproduction of organisms. Some examples of neutral mutations are humans with webbed toes, frog having an extra leg, and white kermode bear.