Biodiversity
3 components
struggle for exsistence
inherited variation
survival of the fittest
Struggle for Limited variation
exsistence Random mutation-
Overproduction of offspring spontaneous DNA
limited ecological resources sequence changes
environmental pressure Gene recombination-
90% offspring alleles shuffle into
unique combinations
mortality Heritable phenotypes-
physical traits pass
Survival of the fittest from parents to
Fitness is an organisms capability to
survive and reproduce in a specific offspring genetic code.
environment passing on genes to the next
generation
Differential reproduction- organisms with
advantageous variations produce more
surviving offspring increasing trait
frequency over time.
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