(BIO) Rhetorical Synthesis

• Darwin's observations of breeders selecting animals with desired traits helped him understand how natural selection could produce changes in wild species

• Natural selection was proposed by Darwin in 1859 after he studied various species

• Both artificial and natural selection can lead to changes in species over time

• Breeders have long used selective breeding to modify domesticated animals

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• Moths changed color during the Industrial Revolution

• The darkening of tree bark due to pollution led to increased survival of dark moths, as they were better camouflaged from predatory birds

• Birds ate more light-colored moths than dark ones

• Pollution caused changes in England's environment during the 1800s

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• Darwin's studies of finches in the Galápagos Islands showed variations in beak shape, which helped him develop his theory of evolution

• By observing how different finch species had beaks adapted to specific food sources, Darwin found evidence for natural selection shaping species over time

• The Galápagos Islands contained many species of finches that Darwin studied during his voyage

• Some finches could crack seeds with thick beaks while others caught insects with pointed beaks

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• Coral reefs contain many species and form important marine ecosystems worldwide

• The relationship between coral polyps and algae involves the process of photosynthesis

• Coral polyps depend on their symbiotic algae partners for nutrients, but this vital relationship can be disrupted by warming waters

• When ocean temperatures rise too high, coral bleaching occurs in reef ecosystems

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• Wolves hunt elk, which changes their grazing patterns

• When wolves are present, elk avoid certain areas where they might be hunted

• By influencing elk grazing behavior, wolves indirectly promote plant growth and create new habitats for other species

• Ecosystems contain complex relationships between predators and prey

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