I dont know what the options are. just send the options and i can answer
Here are 3 principles! Hope this helps!!
1 all living organisms are compound by one or more cells
2 the cell is the structure and functional basic unit of life.
3 all cells originated from other cells
Answer:
Long necks were a random genetic change and resulted in the gradual increase of organisms with long necks.
Evolution occurs when<span>these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift
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