BIO 182 - Exam 1 Questions With 100% Correct Answers 2024

BIO 182 - Exam 1 Questions With 100% Correct Answers 2024 Macroevolution - answerEvolutionary change above the species level. Ecological species concept - answeridentifies species in terms of their ecological niches, focusing on unique adaptations to particular roles in a biological community Postzygotic - answerBarriers that prevent the hybrid zygote from becoming a fertile adult. The theory of gradualism - answerProfound geological changes took place through the cumulative effect of slow but continuous processes identical to those currently operating Prezyogotic - answerReproductive isolation Artificial selection - answerBreeding organisms with specific traits in order to produce offspring with identical traits. Microevolution - answerChange in allele frequencies in a population over generations. Biological species concept - answerDefinition 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 - answerA 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 - answerCharacters (such as height) are those that vary along a continuum within a population. Homologous - answerStructures in different species that are similar because of common ancestry. Gene flow - answerMovement of alleles into or out of a population due to the migration of individuals to or from the population Stabilizing - answerNatural selection that favors intermediate variants by acting against extreme phenotypes Disruptive Selection - answerform 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 - answerSingle celled organism Gradualism - answerOccurrence over a period of time Eukaryotic - answerMulticellular organ