Darwin was unaware of it remarkable examples of

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Darwin was unaware of it, remarkable examples of evolution, which might have helped to persuade people of his theory, were in the countryside of his native England. Scenario: The economic changes known as the industrial revolution began in the middle of the eighteenth century. Since then, tons of soot has been deposited on the country side around industrial areas. The soot discolored and generally darkened the surfaces of trees and rocks. In 1848, a dark-colored moth was first recorded. Today, in some areas, 90% or more of the-peppered moths are dark in color. More than 70 species of moth in England have undergone a change from light to dark. Click on the last bubble that says “A bird’s Eye View…”.Run the simulation in the light and dark forest. % Dark Moths % Light Moths Light Forest Dark Forest Questions: 1. Explain how the color of moths increases or decreases their chances ofsurvival depending on the environment. Section E: Natural Selection 1. There are two types of rabbits: those that strictly eat grass and those that strictly eatberries and flowers. A drought occurs one year and plants have difficulty producing extra flowers, berries, etc., but they are still green. The rabbits have had babies all year long, but many are eaten by foxes or hawks. Due to the drought, many have starved to death.a.Whatrabbitwillnaturalselectionselectagainst? ______________________________________ For? ____________________________________ b. Identify the 5 points of Darwin’s natural selection from the rabbit scenario.Populationshavevariations.______________________________________________________Somevariationsarefavorable.____________________________________________________Moreoffspringareproducedthansurvive.___________________________________________Thosethatsurvivehavefavorabletraits._____________________________________________Apopulationwillchangeovertime. ________________________________________________ 2. Identify if the following is an adaptationor an acquiredtrait. Adaptation is aninherited trait. An acquired trait is a learned behavior to an environmental change.a.Leopard seals have a lot of body fat so that they can withstand the cold water.________________b.Fiddler crabs can alter the shape or size of their claw by using it more.__________________c.Camels have 3 eyelids to prevent sand from entering during a sand storm. ___________________
d. Chameleons change their skin color to hide in their surroundings.____________________e.A rat’s hair was burned off and is able to avoid predators because it has adifferent scent.____________________3.Bob believes that giraffes have long necks because they have stretched their necks to try and reach food that is high in trees. Since the parent had stretched its neck, it passed the long neck on to its offspring. Who does Bob think like -- Lamarck or Darwin? _________________________ 3

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