BIOL1012 Lecture Notes - Lecture 22: Pirkei Avot, Gastrulation, Blastula
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1)thermal exchange is from high to low temperature. 2)organisms either regulate temperature, or conform to the environment thermally. 3)endotherms obtain heat from metabolism, ectotherms from the environment; life is energetically expensive, even more so for endotherms. 4)there are four modes of heat exchange between organisms and the environment, and a variety of strategies to maximize/minimize heat loss/gain. Biology: parts of sections 47. 1-2, 35. 2-4, and p. 415-416. Caulobacterbacteria: the smaller daughter cell (the swarmer) has a flagellum (a tail) while the larger one has a stalk (and is named as such) http://news. stanford. edu/news/2001/november14/bacteriagrant-1114. html. Life stages: we can identify stages in the life-history of organisms. Embryogenesis: the basic body plans of animals, and to a lesser degree plants, are established during embryogenesis, the stage between fertilisation and. 3 from three layers: animals produce potentially hundreds of cell and tissue types, depending at least in part on which layer.
