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Exploring Unicellular Life: Amoebas and Slime Molds

Dive into the fascinating world of unicellular organisms! This lesson focuses on amoebas and slime molds, showcasing their unique features, survival strategies, and role in ecosystems. Students will learn to diagram an amoeba cell and discover how these organisms thrive in various environments. Through engaging riddles and discussions, they will explore the adaptability of slime molds as they shift from unicellular to multicellular forms in search of food. This lesson integrates biology with real-world applications in fields like engineering, oncology, mathematics, and environmental science.

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Exploring Unicellular Life: Amoebas and Slime Molds

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  1. Do Now Complete the living vs. nonliving checklist Answer the following riddle: How many single-celled organisms does it take to the cross the road? (Hint!!!) Take a moment to draw a pyramid with one single celled organism at the top, then two, then four….

  2. Do Now Answer 1. How many single-celled organisms does it take to cross the road? Answer: At least one to start. Despite having no brains or feet, one amoeba can become two, the two can divide and become four and so-fourth.

  3. Agenda • Diagramming an amoeba cell • No Brains, No Feet, No Problem! • Slime mold and academics, No way! • Writing

  4. Diagramming an amoeba

  5. What is an Amoeba? • Amoeba: Unicellular animal with pseudopods that lives in fresh or saltwater • Psuedopod: False feet which extend from the amoeba. Used for movement

  6. Types of amoebas • There are many kinds of amoebas (or amoebae), and they thrive in places where their food sources are abundant. • Often that means where there is vegetation, fungi, and yeast.  • Slime mold, of which there are over 900 different species, will survive as a unicellular organism when food is plentiful, but will adapt when and grow into a mass of amoebas when starving.

  7. Slime Molds: No Brains, No Feet, No Problem http://www.pbs.org/newshour/rundown/2012/04/the-sublime-slime-mold.html

  8. Slime Videos • Time lapse clips, so they don’t really travel that fast • However, this does represent how the slim mold moves in an organized way towards a goal. • Mold is very efficient in search for food.

  9. What does this mean for science?

  10. Write a paragraph in class as if you were in one of the following careers: • Network engineer, trying to figure out how to get better coverage from cell phone towers in remote parts of North America • An oncologist, seeking new healthy cells on which to experiment with potential cures for cancer, in a way that does not harm people or animals. • A mathematician, seeking a formula or algorithm, replicating information repeatedly to problem-solve was to reach the broadest audiences. (Hint: Research the phrase, “Sum Ergo Computo,” meaning, “I am, therefore I compute.”) • An environmentalist hoping to study manage the impact different kinds of slime may have on a habitats of endangered animals, or animals that need to adapt to find new sources of food. • A geographer, tracking the migration patterns of wildlife based on food sources, using slime mold as a model.

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