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Characteristics of Living Things

Characteristics of Living Things. Students will identify the characteristics of living things by creating a fictional movie character. Teacher note: Slides 2-10 accompany the attached student worksheet. Slides 11-15 are an example of a student project. What does it mean to be living?.

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Characteristics of Living Things

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  1. Characteristics of Living Things Students will identify the characteristics of living things by creating a fictional movie character. Teacher note: Slides 2-10 accompany the attached student worksheet. Slides 11-15 are an example of a student project.

  2. What does it mean to be living?

  3. Cellular Organization – All living things are made of cells. • Example: • Cells are specialized allowing the human body to do many different things…for example, skin cells, nerve cells, blood cells, etc.

  4. Homeostasis – All living things must maintain a constant internal environment. • Examples: • Humans sweat to cool down, or shiver to warm up. • Chameleons change color to blend in with their environment.

  5. Require Energy - All living things use energy and have a metabolism.Take in “food” and release wastes. • Examples: • Dogs eat and give off bodily waste • Trees take in CO2 and H2O to create sugar (C6H12O6) give off O2 as waste.

  6. Reproduction – Living things reproduce others like themselves. • Description: • Humans, dogs and trees reproduce sexually…two parents. • Bacteria reproduce asexually…one parent that splits in half in a process called binary fission.

  7. Respond to Stimuli – Living things are able to respond to their environment. Examples: House plants placed in a window will grow towards the sunlight.

  8. Heredity – All living things contain genetic information…DNA and/or RNA. Examples: Humans, turtles, trees, flies, and so forth have DNA!!! The DNA is organized in chromosomes…humans have 46, honey bees have 32 and oak trees have 24.

  9. Adapt and Evolve – Individuals in a population with advantageous adaptations will survive and reproduce. Over time the population will evolve. • Examples: • Ancient giraffes with longer necks were able to eat leaves off of taller trees and would pass on their traits to offspring. Over time, giraffes evolved long necks.

  10. Analysis Questions • Do all living things have all of these characteristics? If you think no, give an example of an organism that does not show all of these characteristics. • What traits do living and dead (once living) things have in common? • Describe two processes that occur while an organism is alive but stop when it dies. • Which of these characteristics may be most challenging for scientists to observe? Explain your answer.

  11. Alien Submission to TBR Studios Presented by:

  12. Biographical Information Name: Maizie Home Planet: Noratunie Climate: Noratunie is a planet of extremes. Very cold half of the year and hot the other. There is much vegetation on Noratunie. Behavior: Very social, affectionate, constantly sensing environment, only aggressive when threatened

  13. “Maizie”

  14. Characteristics of Life of Maizie’s Species • Cellular Organization • Specialized cells on belly identify ground cover, eyes twist 36o° • Metabolizes • Vegetarian, burps waste into holes in the ground • Reproduces • Sexually reproduces up to twice a year • Heredity (Genetic Information) • Contains DNA…has 100 chromosomes • Maintains Homeostasis • Body changes color to blend into environment

  15. Conclusion Maizie is a very special alien from the distant Planet of Noratunie. She would be a great representative of TBR as she is very friendly and likes to interact with new creatures. Having a ferocious bite, she can be very dangerous if provoked. However her ferocity is a rare response that could be very helpful when protecting those about whom she cares. Maizie would be useful in many different action scenarios. TBR would be very wise to choose a creature like Maizie to be their new action hero.

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