Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 56.1, Problem 3CC
WHAT IF? → Imagine two populations of a fish species, one in the Mediterranean Sea and one in the Caribbean Sea. Now imagine two scenarios: (1) The populations breed separately, and (2) adults of both populations migrate yearly to the North Atlantic to interbreed. Which scenario would result in a greater loss of genetic diversity if the Mediterranean population were harvested to extinction? Explain your answer.
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WHAT IF? Imagine two populations of a fish species,one in the Mediterranean Sea and one in the CaribbeanSea. Now imagine two scenarios: (1) The populationsbreed separately, and (2) adults of both populationsmigrate yearly to the North Atlantic to interbreed. Whichscenario would result in a greater loss of genetic diversityif the Mediterranean population were harvestedto extinction? Explain your answer.
asap please with good explanation
Q2.16. When heavily armored marine sticklebacks have invaded freshwater lakes where there are no predatory fish,
their populations have evolved lighter body armor. Given what you've learned about evolution, which of the
following explanations for why this happens is most plausible?
O Young sticklebacks only grow heavy armor when they see predatory fish in their environment.
O When sticklebacks don't use their armor, it shrinks. Then they pass lighter armor to their offspring.
Concentrated pollutants in freshwater lakes disrupt the sticklebacks' ability to grow armor.
O Heavily armored fish grow more slowly and breed later, making armor disadvantageous in these lakes.
Chapter 56 Solutions
Campbell Biology (11th Edition)
Ch. 56.1 - Explain why it is too narrow to define the...Ch. 56.1 - Identify the four main threats to biodiversity and...Ch. 56.1 - WHAT IF? Imagine two populations of a fish...Ch. 56.2 - How does the reduced genetic diversity of small...Ch. 56.2 - If there were 100 greater prairie chickens in a...Ch. 56.2 - WHAT IF? In 2005, at least ten grizzly bears in...Ch. 56.3 - Prob. 1CCCh. 56.3 - Prob. 2CCCh. 56.3 - Prob. 3CCCh. 56.4 - How can the addition of excess mineral nutrients...
Ch. 56.4 - MAKE CONNECTIONS There are vast stores of organic...Ch. 56.4 - MAKE CONNECTIONS Mutagens are chemical and...Ch. 56.5 - What is meant by the term sustainable development?Ch. 56.5 - Prob. 2CCCh. 56.5 - WHAT IF? Suppose a new fishery is discovered, and...Ch. 56 - Give at least three examples of key ecosystem...Ch. 56 - Why is the minimum viable population size smaller...Ch. 56 - Prob. 56.3CRCh. 56 - Prob. 56.4CRCh. 56 - Prob. 56.5CRCh. 56 - One characteristic that distinguishes a population...Ch. 56 - The main cause of the increase in the amount of...Ch. 56 - Prob. 3TYUCh. 56 - Which of the following is a consequence of...Ch. 56 - Which of the following strategies would most...Ch. 56 - Of the following statements about protected areas...Ch. 56 - Prob. 7TYUCh. 56 - Prob. 8TYUCh. 56 - SCIENTIFIC INQUIRY (a) Estimate the average CO2....Ch. 56 - WRITE ABOUT A THEME: INTERACTIONS One factor...Ch. 56 - Prob. 11TYU
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- In which situation will populations experience gene flow? A)hybridization between two populations of ground beetles B)natural-selection pressures between two populations of dragonflies C)mate competition between two populations of red-legged grasshoppers D)intersecting migration routes between two populations of monarch butterfliesarrow_forwardDo explain.arrow_forwardQ6.9. Consider the following hypothetical scenario: An ancestral species of duck had a varied diet that included aquatic plants and terrestrial plants and insects. These ducks spent time on both land and water. Individuals of this species varied in the amount of webbing in their feet, with some individuals having more webbing and some having less. As many years went by, the environment changed such that the aquatic food sources were much more plentiful than those on land. Many generations later, almost all ducks had more webbing on their feet. How is this best explained? Ducks with less webbing worked harder than ducks with more webbing to eat aquatic plants. The more they used their feet, the more webbed their feet became, so they got enough food to survive and reproduce. Due to chance mutations, all the ducks' feet in the next generation had more webbing. They were therefore able to eat aquatic plants and get enough food to survive and reproduce. Ducks with more webbing were better…arrow_forward
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