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.
Answer:
Warm air rises, creating a low pressure zone; cool air sinks, creating a high pressure zone.
He took swabs of one pea plant and put it on others to help them reproduce.
1. what it looks like 2. smells 3.feel 4.what happens if mixed with other properties
