Class Notes for BIOC50H3 at University of Toronto Scarborough (UTSC)

Strata layers of rock/soil with internally consistent characteristics that distinguish them from other layers; strata tells us what was happening to th

Lecture 10 : theropods and the evolution of birds. Ex giganotosaurs (13m: limited resources required specialized niches, specialized massive bones and

Coevolution: the joint evolution of two or more interacting species, each of which evolves in response to selection imposed by the other: coevolution i

Rates of evolution: we can distinguish between: phylogentic rates: rates at which single characters ir complexes of character evolve, taxonomic rates:

Notochord stiff, rod-shaped body found in embryos of all chordates primitive axis of embryo; persists in some as main axis. Cephalochordates notochord

Web of life hypothesis common ancestor was not a single species but instead a community of species that readily traded trees. Ring of life hypothesis a

Primary producers only give about 1% of their energy to others. There"s less and less energy as you go up the chain (10000-100-10) Photosynthesis: orga

Cain, m. l. , bowman, w. d. and hacker, s. d. (2008) ecology. Email: mcadotte@utsc. utoronto. ca (please put biob50 in the subject line) An introductio