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Cells & Heredity

Cells & Heredity. Chapter 1.1. Vocabulary. Habitat Biotic factor Abiotic factor. Vocabulary. Population Community Ecosystem Ecology. What does an organism get from its environment?. Food, water, shelter Things to live, grow, and reproduce. Habitat. Environment where organism lives

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Cells & Heredity

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  1. Cells & Heredity

  2. Chapter 1.1

  3. Vocabulary • Habitat • Biotic factor • Abiotic factor

  4. Vocabulary • Population • Community • Ecosystem • Ecology

  5. What does an organism get from its environment? • Food, water, shelter • Things to live, grow, and reproduce

  6. Habitat • Environment where organism lives • With your Pair Share partner, describe the habitat of a prairie dog or sunfish, you choose! • Include three things that allow the organism to live, grow, or reproduce

  7. What are the two parts of an organism’s habitat? • Biotic and Abiotic

  8. p. 6 – Label Abiotic & Biotic

  9. How is an ecosystem organized? • Organism, population, community, ecosystem

  10. How is an ecosystem organized?

  11. As a class… • Fill in the parts of the ecosystem:

  12. Pair Share Review • Name the biotic factors in the ecosystem.

  13. Pair Share Review • Name the abiotic factors in the ecosystem.

  14. Pair Share Review Living Things and the Environment worksheet due at the end of the hour!

  15. Vocabulary • Limiting factor • Carrying capacity

  16. Chapter 1.2

  17. How do populations change in size? • Organisms leave or die, populations smaller • Organisms join or are born, populations larger

  18. What factors limit population growth? Climate p. 15 Space limits growth Food Water

  19. Discuss with Pair Share partner: • What four things limit population size?

  20. Partner Review • Populations graphing due at the end of the hour!

  21. Chapter 1.3

  22. Vocabulary • Natural selection • Adaptation • Niche • Competition • Predation

  23. How do adaptations help an organism survive? • Adaptations = traits that an organism had to eat, grow, or reproduce • Some are better than others!

  24. Butterfly Traits Behaviors PHYSICAL TRAITS Long tongue v short tongue Bright wings v dull wings Wide span wings v short wings • Migrate v. stay in environment • Strong sense of smell v weak sense of smell

  25. Butterfly Traits

  26. Natural Selection • Natural process • The strongest adaptations will allow for survival • The weaker adaptations will result in death!

  27. Back to the butterflies… Which butterfly will naturally be more likely to survive and reproduce? Why?

  28. Natural selection assumes that the weaker traits or behaviors will cause a part of a species to die out!

  29. What are competition and predation? • Competition – struggle for limited resources • Niche – animals “job”

  30. Predation • Predator hunts, eats prey

  31. Vocabulary • Symbiosis • Mutualism • Commensalism • Parasitism

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