CONCEPTUAL INTEGRATED SCI W/MOD MASTERIN
3rd Edition
ISBN: 9780135720967
Author: Yeh
Publisher: PEARSON
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Chapter 21, Problem 100TDI
To determine
To find:
The ways in which natural selection due to interspecific competition explains the diet and size of two species of salamanders, Plethodon cinereus and Plethodon hoffmani.
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Which of the following is NOT an adaptation created through the process of natural selection?
Captive-bred trout reduce the fitness of wild populations.
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What can be said about the fitness of wild steelhead trout populations and captive-bred steelhead trout? (see figure above)
The gene flow between hatchery-reared and wild populations is leading to a decline in fitness of wild populations.
This data does not help us understand effects of gene flow on fitness.
The gene flow between hatchery-reared and wild populations is neither helping nor hindering the fitness of the wild population.
The gene flow between hatchery-reared and wild populations is increasing the fitness of the wild populations.
Due to global warming, over a 20-year period, many birds have extended the northern margins of their ranges by an average of about 12 miles. Assuming global warming continues at the same rate, by how many miles will they have extended their range in another 10 years?
Chapter 21 Solutions
CONCEPTUAL INTEGRATED SCI W/MOD MASTERIN
Ch. 21 - What is ecology?Ch. 21 - Prob. 2RCQCh. 21 - What is the difference between a community and an...Ch. 21 - Describe exponential growth. Under what conditions...Ch. 21 - Why do populations that live in unstable...Ch. 21 - Describe logistic growth. Under what conditions do...Ch. 21 - What are the differences between Type I, Type II,...Ch. 21 - Explain how global human population size is...Ch. 21 - What is the age structure of a population? What...Ch. 21 - Prob. 10RCQ
Ch. 21 - What is the name for a diagram of who eats whom in...Ch. 21 - Explain the difference between a producer and a...Ch. 21 - What is a decomposer? What organisms function as...Ch. 21 - Can two species have the exact same niche in a...Ch. 21 - Define parasitism, and provide some examples.Ch. 21 - How does primary succession differ from secondary...Ch. 21 - Why are the later colonizers of a habitat...Ch. 21 - What usually happens to the total biomass in an...Ch. 21 - How can regular disturbances contribute to the...Ch. 21 - Prob. 20TISCh. 21 - Prob. 21TISCh. 21 - Which biome includes more living things than all...Ch. 21 - Prob. 23TISCh. 21 - Prob. 24TISCh. 21 - Prob. 25TISCh. 21 - Prob. 26TISCh. 21 - Prob. 27TISCh. 21 - What role do nitrogen-fixing bacteria and...Ch. 21 - Prob. 29TISCh. 21 - Prob. 30TISCh. 21 - Prob. 31TISCh. 21 - Prob. 32TISCh. 21 - Prob. 33TISCh. 21 - Prob. 38TCCh. 21 - Prob. 39TCCh. 21 - Suppose that you have a logistically growing...Ch. 21 - In a population of songbirds, 100 young are born...Ch. 21 - In a population of insects, 1 million young are...Ch. 21 - Prob. 43TSCh. 21 - Does a community contain multiple populations?...Ch. 21 - Prob. 45TECh. 21 - Prob. 46TECh. 21 - A scientist examines how the presence of a...Ch. 21 - How are exponential growth and logistic growth...Ch. 21 - What factors could cause population growth to slow...Ch. 21 - Prob. 50TECh. 21 - Suppose that the carrying capacity of a specific...Ch. 21 - Prob. 52TECh. 21 - Why is a baby elephant considered an expensive...Ch. 21 - Would you expect a tiger to have a Type I, Type...Ch. 21 - Name an organism that you might see in your...Ch. 21 - The graph below shows survivorship curves for...Ch. 21 - Prob. 57TECh. 21 - Prob. 58TECh. 21 - Prob. 59TECh. 21 - Prob. 61TECh. 21 - Prob. 62TECh. 21 - Prob. 63TECh. 21 - Prob. 64TECh. 21 - Prob. 65TECh. 21 - Prob. 66TECh. 21 - Prob. 67TECh. 21 - Prob. 68TECh. 21 - Prob. 69TECh. 21 - Prob. 70TECh. 21 - Prob. 71TECh. 21 - Prob. 72TECh. 21 - Prob. 73TECh. 21 - Prob. 74TECh. 21 - Prob. 75TECh. 21 - Prob. 76TECh. 21 - Prob. 77TECh. 21 - Prob. 78TECh. 21 - Prob. 79TECh. 21 - Prob. 80TECh. 21 - Prob. 81TECh. 21 - Prob. 82TECh. 21 - Name at least two different processes that return...Ch. 21 - Prob. 84TECh. 21 - Prob. 85TECh. 21 - Prob. 86TECh. 21 - Prob. 87TECh. 21 - If you eat a pound of pasta, will you gain a pound...Ch. 21 - Prob. 89TECh. 21 - How does the Second Law of Thermodynamics help...Ch. 21 - How does the energy lost during cellular...Ch. 21 - Prob. 92TECh. 21 - Prob. 93TECh. 21 - Prob. 94TECh. 21 - Prob. 95TECh. 21 - Two populations of rabbits are growing...Ch. 21 - Two populations of monkeys are growing...Ch. 21 - Prob. 98TDICh. 21 - What type of survivorship curve characterizes...Ch. 21 - Prob. 100TDICh. 21 - Some acacia trees have evolved a special...Ch. 21 - Prob. 102TDICh. 21 - Prob. 103TDICh. 21 - Prob. 104TDICh. 21 - Would you expect to find more Type I or Type III...Ch. 21 - Prob. 1RATCh. 21 - A Type III population is associated with a...Ch. 21 - Prob. 3RATCh. 21 - Prob. 4RATCh. 21 - Prob. 5RATCh. 21 - Prob. 6RATCh. 21 - Prob. 7RATCh. 21 - Prob. 8RATCh. 21 - Prob. 9RATCh. 21 - Prob. 10RAT
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- Describe an example of natural selection acting on new DNA patterns to select the most advantageous characteristics.arrow_forwardWrite down an algebraic model for this growth using t for time and n for number of bacteria, noting down the values for t used.arrow_forwardAt the beginning of an experiment, there are 100 bacteria. If the bacteria follow an exponential growth pattern with a rate k = 0.002, what will the population be after 5 hours? how long will it take for the population to double?arrow_forward
- INSTRUCTIONS: Use the words in the box below to fill in the blanks based on what you have learned about the adaptations of species. Words may be used more than once or not used at all. Word Bank Selective breeding Hybrid Population Real Crop species Diverse Traits Domestic Uniform Artificial CLOZE 3 occurs when humans take control of the breeding process. The favorable to be passed on are chosen by the breeder to create a new or improved variety. Farmers have bred like corn, to produce more food in a smaller area. These plants result by crossing parent plants for their desired traits. animals, like dog breeds, have also been bred to be incredibly compared to the diversity of their ancestors. This selecting of traits is also known as selection. Similar to natural selection, the of a species changes over time, and some traits become more common.arrow_forwardJohn Snow, an English physician, has observed that disease is becoming more prevalent in a local neighborhood and he wants to know why. He collects information about the local people, including how many family members contracted the disease and where they live. John discovers that the disease is most common in homes located closest to the town’s water pump. John contrives an explanation: that the illness is waterborne and people are contracting the disease from water they retrieve from the town’s water pump. After petitioning the authorities, the handle at the pump is removed. John collects data about disease incidence and finds that occurrence of the disease is greatly reduced. John concludes that the water from the pump was causing the illness. What step(s) of the scientific method is/are missing from Data Table 1? Describe each and propose a way that they might be fulfilled in the scenario?arrow_forwardNumber 50arrow_forward
- The number of bats in a colony is growing exponentially. After 2 years, there were 120 bats. After 5 years, there were 960 bats. If the colony continues to grow at the same rate, how many bats are expected to be in the colony after 8 years? Do not include units in your answer.arrow_forwardHow do the tube worms at the hydrothermal vents survive? a The tube worms burrow into the sediment on the sea floor and find smaller worms and clams to eat. b The tube worms swim from vent to vent, looking for mats of bacteria that they can scrape off the rock with their red, bushy plumes. c The tube worms use their red bushy plumes to grab and devour small organisms like tiny shrimp. d They have a symbiotic relationship with bacteria that live inside them and provide their nutrition.arrow_forwardWhich birds are held in high esteem all over Asia and adored as symbols of long lifearrow_forward
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