BIOLOGY 3UU3 Midterm: Bio3uu3Keypointsandquestions-1

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 3UU3
• Professor: David Rollo

Document Summary

As size of organism increases the metabolic rate increases. As size of organism increases metabolic rate per gram decreases. Surface area of smaller organism in relation to total body weight> surface area of larger organism in relation to total body weight. Slope= 0. 75 for basal metabolic rate vs. body mass. Slope = 0. 6 when surface area vs body mass. Slope= -0. 25 (empirical) surface area per gram vs body mass. Slope= -0. 33 (predicted) surface area per gram vs body mass. Brain, kidney, liver, skin and gut size decreases in % of body mass as organism size increases. Blood and muscle does not change in % of body mass as organism size changes. Skeleton increases in % of body mass as organism size increases. Larger animals are less affected by deviations in environmental conditions and can survive easier in a greater range of environmental conditions. Article 1 evolution at two levels: on genes and form.