BISC 110 Lecture Notes - Lecture 2: Flying Pig, Satin Bowerbird, Bombardier Beetle
19 Oct 2012
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Document Summary
Any trait that helps an organism survive and reproduce. Structural adaptions (examples: giraffes: their long neck. Crab spider: their body colour is disguised to capture prey. Lampsilis freshwater clam: their mantle tissue looks like a small fish that attracts other fishes. Acherfish: spits water, hits the insect which falls in the water. Physiological adaptions: desert animals: adapt in hot climate. Bombardier beetle: releases 2 chemicals to mix, and makes a foul smell and sound. Sperms: they kill one another since only 1 can be used. Charles darwin became a naturalist and traveled to discover plants and animals: wrote, the orgin of species , his friend: alfred russell wallace, collected butterflies, helped darwin. What processes really lead to adaption: main point is natural selection, natural selection: process where the individual in a population that have characteristics best suited to the environment: survive and reproduce better then others. 3 important conditions for evolution by natural selection.
