BIO 1406 Lecture Notes - Lecture 2: Alpheidae, Chromosome, Macroevolution
11 Apr 2016
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In the gal pagos islands darwin discovered plants and animals found nowhere else on earth. ______________ , the origin of new species, is at the focal point of evolutionary theory. Evolutionary theory must explain how new species originate and how populations evolve. ______________consists of changes in allele frequency in a population over time. _____________refers to broad patterns of evolutionary change above the species level. Concept 24. 1: the biological species concept emphasizes reproductive isolation. Species is a latin word meaning kind or appearance . Biologists compare morphology, physiology, biochemistry, and dna sequences when grouping organisms. The __________________________states that a _____________is a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring; they do not breed successfully with members of other populations. Gene flow between populations holds a species together genetically. _____________isolation is the existence of biological factors (barriers) that impede two species from producing viable, fertile offspring.
