On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to island, which helped him to develop his theory of natural selection.
Aristotle was the first to begin to classify all living beings, that is he made an attempt at a taxonomy that encompassed all the species that he knew. In a way, he gave us the idea of taxonomy or classification.
Cells are the basic unit of structure and function of all living organisms.
The order of organization in multicellular organisms are cells, tissues, organs, organ systems, and organisms. This is because this is how it ranks - cells make tissues, tissues make organs, and etc.
Hope this helps!
It’s wind Direction %100 sure!
That has to be with the scientific method