SCIENCE 101 > GIZMOS > SCIENCE 101: natural selection gizmo (QUESTIONS AND CORRECT ANSWERS) GRADED A+ 2020 (All)

SCIENCE 101: natural selection gizmo (QUESTIONS AND CORRECT ANSWERS) GRADED A+ 2020

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Student Exploration: Natural Selection Vocabulary: biological evolution, camouflage, Industrial Revolution, lichen, morph, natural selection, peppered moth Prior Knowledge Questions (Do these BEFOR ... E using the Gizmo.) The peppered moth (Biston betularia) is a common moth found in Europe, Asia, and North America. It is commonly found in two forms, or morphs: a dark morph and a light, speckled morph. Birds are a frequent predator of the peppered moth. 1. Which morph do you think would be easier to see on a dark tree trunk? light-colored moth 2. Which morph do you think would be easier to see on a light tree trunk? The dark morph Gizmo Warm-up The Natural Selection Gizmo™ allows you to play the role of a bird feeding on peppered moths. The initial population of 40 moths is scattered over 20 tree trunks. Click on moths to capture them. Click the Next tree button (or the spacebar on your keyboard) to advance to the next tree. 1. Check that LIGHT TREES is selected. Click Play ( ), and hunt moths for one year. A. How many dark moths did you capture? _5 dark moths B. How many light moths did you capture? 0 light moths were captured How many moths can you find? Get the Gizmo ready: • Click Reset ( ). • Check that the LIGHT TREES tab is selected. Activity A: Light trees C. Camouflage is coloring or patterns that help an organism to blend in with the background. Which type of moth is better camouflaged on light bark? light colored moth 2. If a forest contained mostly light-colored trees, which type of moth would you expect to be most common? light-colored moth would be most common [Show More]

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