WHAT IS LIFE LL W/ LAUNCHPAD
WHAT IS LIFE LL W/ LAUNCHPAD
4th Edition
ISBN: 9781319231859
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 16, Problem 5MC
Summary Introduction

Introduction:

The three trade-offs are between reproduction and survival, reproduction and growth, and the number of offsprings and their size.

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The following equation is used to calculate the population growth rate, Ro, per generation from a life table. Iy is survival probability from birth to age x and my is fecundity at age x. Ro = Elkm Multiplying ly and my and summing it over all age categories in the life table gives the population growth rate per generation because: Calculating the reproductive output for each age class requires considering the survival probability to that age (a dead individual does not reproduce) and the fecundity at that age by multiplying them with each other. Summing over reproductive output for all age classes gives the total per capita growth rate of the population The fecundity at each age is lower when the survival is higher because of energy constraints. Multiplying probability of survival and fecundity in each age class takes this trade-off into account. Summing over reproductive output for all age classes gives the total per capita growth rate of the population The resulting type of growth…
For which organism would it be advantageous to allocate more resources to reproduction than to growth? A. One with a long life span B. One with low adult survival rates C. One in which fecundity increases with increased body size D. One in which offspring survival is very low E. None of the above
Monarch butterflies are a migratory species that flies south once during the lifetime of an individual. One specific population flies to Cuba, where it encounters and shares habitat with resident monarchs that do not migrate and stay within Cuba their entire lifespan. The table shows comparisons between the two populations. What data indicate the greatest difference between the populations? A. Male to female ratioB. Difference in wing sizeC. Higher mean weightD . Average of wing angle
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Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license