Following are the best conditions or examples for the natural selection to occur:
• More organisms are born than can survive.
• Organisms vary in their characteristics, even within a species.
• Differences in reproduction and survival are due to variation among organisms.
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B. atmosphere since the atmosphere is made up of o2, co2 (a greenhouse gas) and nitrogen. those are the primary elements
The brain of the cell most important
To ensure there safety and comfort of subjects and to make sure the subjects are taken advantage of.
