Course: Eighth Grade Designated Six Weeks: Fifth Six Weeks Days to Teach: Life Science -16 Days Unit: Life Science/STAAR Boot Camp STAAR Boot Camp 10 Days TEKS Guiding Questions/ Assessment Vocabulary Instructional Resources/ Specificity Strategies Weblinks Unit Subtopic: Adaptation Days to Teach: 4 Days 8.11 (C) explore Some scientists studying dominant trait Guiding Question: Why do organisms of how short- and aquatic plants notice that recessive trait the same species long-term flooding often leads to a genotype Exemplar Lesson: have many traits and environmental decrease in the rate of “Environmental characteristics in phenotype changes affect photosynthesis among aquatic Changes.doc” common? organisms and plants. Flooding causes more variations TEKS 8.11C APPS: traits in sediment to be suspended in hybridization Jog Nog Specificity: subsequent the water. The increased Science Glossary Adaptation will increase a populations sediment concentration natural selection Evolution by Natural Click and Learn species/populations ability to decreases the amount of light homozygous Selection survive changes due to natural Science 360 Khan events, competition or loss of that reaches the plants. Why dominant Academy WWF habitat and food, and human impact. does the decreased rate of EOC READINESS Together Pangea However, individual organisms will photosynthesis lead to a homozygous Peppered Moth Safari live or die (no individual decrease in a plant population? recessive Activity adaptation): natural selection, Less water is available heterozygous Darwin’s finches. for absorption Helping Natural Less tissue is available biodiversity Selection: Shared Teacher Note: Emphasis should be for plant growth Biosphere Folder on the difference between inherited c. Less energy is Favorable Variations traits that arise over time as a result Stemscopes of environmental interactions and Adaptation The Right Tool for available for characteristics of individual reproduction the Job: organisms. d. Less soil is available for leaf development identify Plan to review 7.11C, some changes in genetic traits that have occurred over several generations through natural selection and selective breeding Exemplar Lesson such as the Galapagos Medium TEKS: 8.11C Ground Finch or domestic animal “Environmental Changes”
Course: Eighth Grade Designated Six Weeks: Fifth Six Weeks Unit: Life Science/STAAR Boot Camp Days to Teach: Life Science -16 Days STAAR Boot Camp 10 Days TEKS Guiding Questions/ Specificity Assessment Vocabulary Instructional Strategies Resources/ Weblinks Unit Subtopic: Adaptation Days to Teach: 4 Days 8.11 (C) explore how short- and long-term environmental changes affect organisms and traits in subsequent populations EOC READINESS Guiding Question: Why do organisms of the same species have many traits and characteristics in common? Specificity: Adaptation will increase a species/populations ability to survive changes due to natural events, competition or loss of habitat and food, and human impact. However, individual organisms will live or die (no individual adaptation): natural selection, Darwin’s finches. Teacher Note: Emphasis should be on the difference between inherited traits that arise over time as a result of environmental interactions and characteristics of individual organisms. Plan to review 7.11C, identify some changes in genetic traits that have occurred over several generations through natural selection and selective breeding such as the Galapagos Medium Ground Finch or domestic animal Some scientists studying aquatic plants notice that flooding often leads to a decrease in the rate of photosynthesis among aquatic plants. Flooding causes more sediment to be suspended in the water. The increased sediment concentration decreases the amount of light that reaches the plants. Why does the decreased rate of photosynthesis lead to a decrease in a plant population? Less water is available for absorption Less tissue is available for plant growth c. Less energy is available for reproduction d. Less soil is available for leaf development dominant trait recessive trait genotype phenotype variations hybridization natural selection homozygous dominant homozygous recessive heterozygous biodiversity Biosphere Favorable Variations Adaptation Exemplar Lesson: “Environmental Changes.doc” TEKS 8.11C Evolution by Natural Selection Peppered Moth Activity Helping Natural Selection: Shared Folder The Right Tool for the Job: Exemplar Lesson TEKS: 8.11C “Environmental Changes” APPS: Jog Nog Science Glossary Click and Learn Science 360 Khan Academy WWF Together Pangea Safari Stemscopes
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