A scientific theory developed by many different experiments are performed and repeated
Answer: Option D
<u>Explanation:</u>
Hypothesis is an experimental analysis where it is not a perfectly proven fact but a guess due to continuous observation over the years. Hypothesis is the foundation for further discoveries and theories.
Theories are based on the group of hypothesis. Theories are not fixed based to prove on the hypothesis, if any alterations are found they repeat it with more innovative ideas. Over the years continuous and repeated experiments are conducted on the same. Theory is an explanation that is given for the hypothesis by conducting various experiments and continuous observation time and again to prove it.
A law is a proved theory. It is more of mathematical derivations and calculations with precision. A 100% proved theory after observation only can be considered as a law.
Flagella (singular = flagellum) are long, hair-like structures that extend from the plasma membrane and are used to move an entire cell, (for example, sperm, Euglena).
