Bio 2 Exam 2 Test
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| A. Web is not isolated in chains, but connect to eachother in webs. A given food species can feed into more than one trophic levelB. SHL: the number of indviduals in each population drastically increased than decreased about every 10 years, causes cyclical pattern. POPULATION SIZE IS DYNAMICC. Energetic hypothesis: the inefficency of energy transfer limits length of chain (only 20% transferred)D. some members of Monera were vastly different from each other and Protista were polyphyletic (some related to other kingdoms)E. Building blocks arranged into trianglesF. This is used as a reference point to start the tree. The appearance of the characters in the study group compared to the out-group can show the order of which the characters appeared in the organisms.G. tube to exchange genetic material between two bacterial cellsH. The filament rotates, pushing the bacterium through liquid. The hook connects the filament to the basal apparatus. The basal apparatus anchors to the flagellum to the cellI. Monophyletic: includes the most recent common ancestor of a group and ALL of its descendantsJ. Hollow tube that protects the genomeK. Sugar-amino acid complex that form a mesh netL. Usually a single, double-stranded circular chromosomeM. organisms adapted to living at or near carrying capacity (exhibit logistic growth, age at 1st reproduction old, long life span, extensive parental care, more prone to extinction (treesN. Type 1: steady survivorship for a long time (large mammals). Type 2: constant mortality rate over time (uniform death rate). Type 3: low survivorship rate at the early part of life cycle (oysters shell)O. Fundamental: entire niche that species is capable of using. Realized: actual environment conditions that species usesP. Expo: dN/dt = rmaxN (N = indv, rmax= rate of growth, dN/dt = instantaneous growth rate over time) The slope of the graph will be steeper the larger the rate of growth.Q. has a thin layer of peptidoglycan surrounded by and outer membrane (2 lipid bilayers) the outer membrane is made of lipoplysacchride which is polar and non-polar. Appear pinkR. thick layer of peptidoglycan(made of many layers) that forms a strong cell wall. Appear purpleS. Survivorship curve = percent of orignal population that survives to a given age. Type 1, Type 2, Type 3T. Contains biological macromolecules(DNA & protein), can reproduce |
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