Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Textbook Question
Chapter 53.1, Problem 1CC
DRAW IT → Each female of a particular fish species produces millions of eggs per year. Draw and label the most likely survivorship curve for this species, and explain your choice.
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Choose True for yes or choose false for no for each statement
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Describe what survivorship curves can tell you about a species’ reproductive strategies.
Chapter 53 Solutions
Bio 121 Campbell Biology Truman College
Ch. 53.1 - DRAW IT Each female of a particular fish species...Ch. 53.1 - Prob. 2CCCh. 53.1 - Prob. 3CCCh. 53.2 - Explain why a constant per capita rate of growth...Ch. 53.2 - Prob. 2CCCh. 53.2 - Prob. 3CCCh. 53.3 - Explain why a population that fits the logistic...Ch. 53.3 - WHAT IF? Given the latitudinal differences in...Ch. 53.3 - Prob. 3CCCh. 53.4 - Identify three key life history traits, and give...
Ch. 53.4 - Prob. 2CCCh. 53.4 - Prob. 3CCCh. 53.5 - Prob. 1CCCh. 53.5 - WHAT IF? Suppose you were studying a species that...Ch. 53.5 - Prob. 3CCCh. 53.6 - How does a human population's age structure affect...Ch. 53.6 - How have the rate and number of people added to...Ch. 53.6 - WHAT IF? Type "personal ecological footprint...Ch. 53 - Gray whales (Eschrichtius robustus) gather each...Ch. 53 - Suppose one population has an r that is twice as...Ch. 53 - Prob. 53.3CRCh. 53 - Prob. 53.4CRCh. 53 - Density-dependent factors regulate population...Ch. 53 - The human population is no longer growing...Ch. 53 - Population ecologists follow the fate of same-age...Ch. 53 - A population's carrying capacity (A) may change as...Ch. 53 - Scientific study of the population cycles of the...Ch. 53 - Analyzing ecological footprints reveals that (A)...Ch. 53 - Based on current growth rates, Earth's human...Ch. 53 - The observation that members of a population are...Ch. 53 - According to the logistic growth equation...Ch. 53 - During exponential growth, a population always (A)...Ch. 53 - Which of the following statements about human...Ch. 53 - Prob. 10TYUCh. 53 - EVOLUTION CONNECTION Contrast the selective...Ch. 53 - Prob. 12TYUCh. 53 - Prob. 13TYUCh. 53 - WRITE ABOUT A THEME: INTERACTIONS In a short essay...Ch. 53 - SYNTHESIZE YOUR KNOWLEDGE Locusts (grasshoppers in...
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- What is often true of a population of organisms with a type Ill suvivorship curve? they produce few offspirng and invest more energy in each offspring they produce more offspring and invest little energy in each they have low death rates during early life stages they are equally likely to die at any agearrow_forwardExpat Med @DrExpat_ 4. Respond to this tweet on the right using mathematical evidence from the Lotka-Volterra model of predator-prey interactions. Draw a graph to illustrate what the Roomba's population growth rate would look like in the wild in the absence of predation (*assuming the Roomba was capable of reproduction in its new habitat). I LEFT MY FRONT DOOR OPEN AND MY ROOMBA JUST WENT OUT AND I CAN'T FIND IT. WHAT ARE THE CONSEQUENCES OF e THIS. IT HAS NO NATURAL PREDATORS. 3:50 AM 19 Dec 18 Twitter Web Client a th 1,755 Retweets 8,619 Likes 5. Are there any factors missing in the Lotka-Volterra model of predator-prey interactions that you might need to include to accurately model prey population growth in the absence of predators? ar at eearrow_forwardWhat is often true of a population of organisms with a type Il suvivorship curve? they produce few offspirng and invest more energy in each offspring they produce more offspring and invest little energy in each they have low death rates during early life stages they are equally likely to die at any agearrow_forward
- For each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators. American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Even before they hatch, the offspring are prone to high rates of predation. Many offspring die before they reach adulthood. Of the offspring that do survive, some will die in adulthood, and some will live their entire natural life span.arrow_forwardThe overexploitation of cod in the North Atlantic releases crab and shrimp from predation pressure and results in a boom in the number of crab and shrimp. The increased number of crab and shrimp cause a decline in zooplankton abundance, which subsequently causes an increase in phytoplankton abundance. This change in the food web is an example of which of these? top-down control bottom-up control O behavioral cascade O trophic ricochet O donor-controlarrow_forwardUsing the figure provided, which curve implies that an animal may lay thousands of eggs per year with a regular number dying each year? 1000 Туре 1 100 Type II 10 Type III Age O Type I O Type II O Type III O none of the above a op A insort sc %24 4 & 5 8 Log Number of Survivors (a,) oooarrow_forward
- Describe the trends in global fish capture from 1950 to 1990 and from 1990 to 2016. Describe several factors that account for these trendsarrow_forwardLet us assume that an insect population in its first year has 5 individuals, in its second year has 10 individuals, and in its 3 (and current) year has 20 individuals. Assuming they mate continuously, what will the size of the population be next year (year 4) given that the population growth has a 2-year time delay and a growth rate of 1.2? Assume that the carrying capacity is 200. O 41 O 23 05 O 20 O 43 O 53 O21 O 10arrow_forwardDefine predation. How does the predator-prey relationship differ from the parasite-host relationship? Why is the evolutionary race be-tween predator and prey one that the predator cannot afford to win?arrow_forward
- Think about a predator-prey system that perfectly follows Lotka-Volterra dynamics. The search efficiency parameter (a) represents how quickly the predator finds and kills its prey. What would happen if most the predator population had a parasite that made them less effective predators? Infected animals find and kill prey less frequently (that is, the parasite caused the value of the search efficiency parameter to decline). the populations would still cycle; the amplitude of prey and predator would increase Othe populations would no longer cycle; the prey would increase and the predator would go extinct the populations would no longer cycle; the prey would go extinct and the predator would increase the populations would still cycle; the amplitude of prey and predator would decline the predator and prey populations would no longer cycle; the parasite and the predator populations would cycle insteadarrow_forwardIs the following case study an r-strategist or a K-strategist? American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Offspring are left to develop, hatch, and grow on their own, maturing in about three months.arrow_forwardIn an iteroparous species lifetime fitness is maximized at investment, while in semelparous species level of reproductive an intermediate maximal effort is exerted in a single reproductive event Maximal an intermediate effort is exerted in one of many reproductive events an intermediate minimal effort is exerted in a single reproductive event maximal an intermediate effort is exerted in a single reproductive event an intermediate maximal effort is exerted in one of many reproductive eventsarrow_forward
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