BIOL 1070 Final: Final Exam Review (W16)
27 Jun 2016
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Document Summary
Zebra mussel (dreissena polymorpha) are invading the great lakes along with quagga mussels (dreissena rostiformis) Causing economic damage, aesthetic impact and biological damage. Putting native mussels from the family unionidae at risk by competing for food and living space. Freshwater mussels" larvae are glochidia, they are dioecious and they must obligate parasitism. They use baits and traps to lure fish; host capture (physically grabbing), simple lures (attract fish attention), complex lures (mimic fish or prey) Tradeoffs of having simple vs complex lures (energy, resources, type of fish attracting, variety, guarantee) Nested hierarchies occur when one fits within the next, as you move up hierarchy categories become general: individuals, families, population, species. Taxonomic levels; domain, kingdom, phylum, class, order, family, genus, species. Diversity refers to the number of species in a group or area. Ontogeny is the development and involves morphological changes. Cryptic variation is the idea that, to be evolutionary relevant, variation must have a genetic bases and be heritable.
