Biology 3660A/B Lecture 3: 3601 Lec 3 Body size.docx

• School: Western University
• Department: Biology
• Course: Biology 3660A/B
• Professor: Brent Sinclair

Document Summary

Allometry shift in proportions of physiology due to changes in size: scaling of a sphere sa = v2/3, less surface area more volume, volume goes up exponentially compared to sa, this creates biological challenges why cells are so small, transportation of nutrients and chemicals, large animals cool down slower more thermal mass, anatomical structure scale with body size, population density, gas exchange area, blood volume, energy intake/metabolic rate increases with body size, increases disproportionately log relationship, m (metabolic rate) = a (intercept)*wb(weight^body weight)