Use the diagram below to match the letter with the name of the layer. 1. inner core2. outer core3. mantle4. crust

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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