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St. John Fisher College - Spring 2011 | ||
Section 01 | ||
 | The Economy of Nature (6th Edition) by Robert E. Ricklefs Paperback, 700 Pages, Published 2008 ISBN-10: 0-7167-8697-4 / 0716786974 ISBN-13: 978-0-7167-8697-9 / 9780716786979 Because each offspring has equal genetic contributions from its mother and its father, individuals of the rarer sex in a population contribute, on average, more sets of their genes to the next generation. This fact explains the nearly equal proportions of male and female individuals observed in m | |