Believe in yourself and have a good mindset towards your success
<span>10% rule (efficiency between trophic levels): limits how long an ecosystem's food chain can be
Predator/prey
cost benefit analysis (i.e. foraging) -- cost is risk of being eaten or
killed along the way, benefit is energy/nourishment obtained: limits
distribution of predator v. prey
Immigration/Emigration with other populations and ecosystems
Island
biogeography: size of land and distance from another
population/ecosystem (mainland): limits population size and variability
on island</span>
I would think 15, though I am not quite sure
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Below are the answer:
Natural selections need competition in order to take place.
Individuals with favorable traits are <span>more successful</span> in an environment.
He noticed that each pigeon from each different island in the Galápagos Islands had a different type of beak. Noticing that each bird had a different beak, he connected it to the different environments of each island. He came to the conclusion that the environment of where each bird was determined how their beaks would be shaped. This lead to his theory of natural selection.