BIOLOGY 1114 Lecture Notes - Lecture 16: Turtle Shell, Rafflesia, Crypsis
27 Sep 2018
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Image: alligator holding turtle in mouth, attempting unsuccessfully to chomp it: turtle"s shell protects from alligator (predator, turtles wait through bad conditions, with protection of shell. Specialized features that enhance fitness: remember: fitness is measure of ability to survive and reproduce, ex: turtle"s shell. The process by which "features that enhance fitness" (adaptations) are fixed in a population or species: process of gaining the features for the species (evolution, whole species, does not occur in an individual. Feeding specializations: enhance ability to eat: hummingbird: extended beak to reach into flowers. Short wings, move fast, ability to hover around flower: corals: Stinging cells, to defend, and capture prey: tiger: Large teeth to capture prey: crypsis: ("staying hidden", gecko, camouflage on bark, moth, prints on wings look like eyes, flower: plants can have adaptations too! Improve fitness: organisms possessing the certain trait will be better off, higher fitness, than organisms without the trait (all other things being equal)
