Endoplasmic reticulum with attached ribosomes is called rough ER. It looks bumpy under a microscope. The attached ribosomes make proteins that will be used inside the cell and proteins made for export out of the cell.
When a hypothesis has been tested several times using experiments and found to be true, such a hypothesis becomes a theory.
<h3>What is a theory?</h3>
A theory is a hypothesis that has been tested by experiments by several independent researchers.
Hypotheses are tentative statements without any scientific proof or backing. They can be tested using experiments.
Hypotheses remain accepted when there are supportive experimental data and become theories when several independent experiments support them.
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The fossil that was discovered by Charles Darwin goes a long way to suggest that the earth is older than 6000 years.
<h3>Who is Charles Darwin?</h3>
The man Charles Darwin is the renowned proponent of the theory of evolution. According to this theory, living things all evolved from simple life forms many years ago.
The fossil that was discovered by Charles Darwin goes a long way to suggest that the earth is older than 6000 years.
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