BIOL 3040 Chapter : BIOL 3040 Ch 3 Objectives
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In outfield mice darker coats are more common, but on the florida gulf coast lighter colors are seen. A dark mouse on a light soil is more likely to be eaten. (coat color and environment influences survival and reproduction) In the environment adaptions, can help serve against biotic and abiotic challenges in cactus sharp spines that detour herbivores and flowers that entice pollinators serve a biotic factors. Abiotic factors such as drought are overcome by shallow root systems which can absorb water from infrequent rains, and a waxy cuticle which prevents water loss. There was less of a threat to their offspring (more likely to survive). 3. 4 natural selection in the laboratory: describe the lenski"s long-term evolution experiment, studied a population of e. coli. In lenski"s experiment he showed that bacteria grown at 37 degrees evolved a higher fitness at that temperature over time. He recognized that outside of this experiment bacteria were subjected to a wide range of temperatures.
