The atomic number of an element is the number of protons in the nucleus of an atom of that element.
Atoms with the same number of protons, but a different number of neutrons are called isotopes.
<span>Coconut milk is a liquid endosperm, and has been found to be a very significant enhancer of growth and proliferation of plant stem cell tissues in the culture. Cytokinins present in the cocnut milk are attributed to this effect. Cytokinins stimulate shoot initiation, root growth, cell division, and leaf senescence.</span><span />
1. Scientists may want to get a better understanding of the natural world.
2. They want to gather more data, info, etc about a certain topic.
3. They may want to make predictions and give explanations about a topic.