BIOL 1010 Lecture Notes - Blubber, Koelreuteria Paniculata, Thermoregulation

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1010
• Professor: Joy Stacey

Document Summary

Population: individuals of a species in an area. Characteristics of life: order, response to environment, regulation, energy processing, growth and development, reproduction, evolutionary adaptation. Occur at multiple levels of organization (cell, organ, etc. ) in same animal. Diving mammals slow pulse and restricting blood flow to vital areas. Blood shunted to vital organs physiological. Amount/structure of myoglobin (delivers oxygen to muscle) biochemical. Theodosius dobzhansky (1900-1975): nothing in biology makes sense except in the light of evolution. Darwin: sailed on the beagle studied diversity and the ways species suited their environment, descent with modification (as descendants of ancestor moved they formed modifications that fit the way of life, natural selection (1859) Concurrent with advances in geology: age of earth, fossils. Natural selection: heritable traits passed from parents, population produces more offspring than can survive, cod larvae 1/ 1 million survive until adulthood. Individuals with traits suited for environment have high fitness. Long term changes in organisms (accumulation of differences over time)