BIOL 1201 Chapter : L2 Ch2 2012
Document Summary
Nature: lions and tigers are not the same species: offspring are not viable and the reproduction does not happen in nature, we cannot use the biological species concept with asexual reproducing organisms. Most species on the planet asexually reproduce: individuals may look different but can reproduce and therefore are the same species like dogs. Dogs look differently because of artificial selection (selective breeding): conversely, individuals may look the same but cannot reproduce an therefore are not the same species. Diversity of viruses, prokaryotes, and protists 8/21/2012 5:39:00 pm. The hidden world of microbes: microbe: a group of living or non-living things too small to be seen clearly without a microscope, prokaryotes: range in size 0. 2-1. 0 micrometer. How big is a micrometer or a micron: 1/1,000,000 of a meter, the period" at the end of a sentence is about 1000 m, other biological entities: even smaller than bacteria. Viruses do not belong in any of the 3 domains of life (prokarya,
