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BIO 182 Exam 1 Questions with Solutions
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BIO 182 Exam 1 Questions with Solutions
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BIO 182 Exam 1 Questions with SolutionsMacroevolution - -Evolutionary change above the species level.
-Ecological species concept - -identifies species in terms of their ecological
niches, focusing on unique adaptations to particular roles in a biological
community
-Postzygotic - -Barriers that prevent the hybrid zygote from becoming a
fertile adult.
-The theory of gradualism - -Profound geological changes took place
through the cumulative effect of slow but continuous processes identical to
those currently operating
-Prezyogotic - -Reproductive isolation
-Artificial selection - -Breeding organisms with specific traits in order to
produce offspring with identical traits.
-Microevolution - -Change in allele frequencies in a population over
generations.
-Biological species concept - -Definition of a species as a population or
group of populations whose members have the potential to interbreed in
nature and produce viable, fertile offspring, but are not able to produce
viable, fertile offspring with members of other populations.
-Population - -A local group of organisms belonging to the same species and
capable of interbreeding
According to evolutionary theory, the smallest entity that can evolve is
*evolve over time
-Quantitative - -Characters (such as height) are those that vary along a
continuum within a population.
-Homologous - -Structures in different species that are similar because of
common ancestry.
-Gene flow - -Movement of alleles into or out of a population due to the
migration of individuals to or from the population
-Stabilizing - -Natural selection that favors intermediate variants by acting
against extreme phenotypes
, -Disruptive Selection - -form of natural selection in which a single curve
splits into two; occurs when individuals at the upper and lower ends of a
distribution curve have higher fitness than individuals near the middle
-Prokaryotic - -Single celled organism
-Gradualism - -Occurrence over a period of time
-Eukaryotic - -Multicellular organism
-Speciation - -Genetic changes over time
-Phylogeny - -Classification of organisms
-Anaerobes - -Do not require oxygen to live
-Creationism - -Religious viewpoint
-Evolution - -Scientific viewpoint
Descent with modification
-Aerobes - -Require oxygen to live
-Linnaeus - -Binomial nomenclature
-Exoenzymes - -Hydrolytic enzymes released by fungi into their
surroundings
-Chitin - -Component of fungi cell walls
-Parasites - -Absorb nutrients from living hosts
-Saprobes - -Absorb nutrients from dead matter
-Mycellium - -An interwoven mass of fungal hyphae that surrounds the
material on which the fungus feeds
-Septa - -An incomplete cross-wall dividing hyphae into separate cells
-Coenocytic cells - -Cells that lack septa
-Ectomycorrhiza - -Wraps itself around the plant root
-Pheromones - -Responsible for attracting adjacent hyphae of different
mating types
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