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Warm-ups

Week 8. Warm-ups. Poisoned Potion!. One of 13 bottles of magic potion has been poisoned! They will be used at an important event. As scientists, we have called in to determine which bottle of potion is poisoned, so the others can be saved.

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Warm-ups

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  1. Week 8 Warm-ups

  2. Poisoned Potion! • One of 13 bottles of magic potion has been poisoned! They will be used at an important event. As scientists, wehave called in to determine which bottle of potion is poisoned, so the others can be saved. • The poison is odorless, tasteless, and colorless. • If we can solve this, we get paid $10,000. • Rules • You have 4 rats (only materials) to test the bottles • The poison is fatal in ~24 hours, not right away • No humans can be tested • How will use the rats to determine exactlywhich ONE bottle of potion is poisoned? • If you have unlimited time? • If you have 48 hours? • If you have just over 24 hours?

  3. Agenda

  4. Vocabulary • Biotic: living parts of an ecosystem • Abiotic: non-living parts of an ecosystem Which is most important? Why?

  5. Levels: Organism Population Community Ecosystem Biome Defintions a living individual group of similar organisms – a single species - in same place, time all the biotic components (species) in the same place at the same time All the biotic and abiotic components in the same place at the same time A REGIONAL ecosystem, defined by the dominant plants and the climate InterdependenceAll organisms depend on other organisms

  6. Levels: Organism Population Community Ecosystem Biome Examples Zebra, wildebeast, dung beetles, lions, cheetahs, birds, elephants A specific savanna: the community above, plus the sun, water, etc. Troop of baboons, school of fish, herd of buffalo Grassland, Tropical Rainforest, Deciduous forest, Desert, etc. Maple tree, dog, cactus, or elephant InterdependenceMatch the levels to the examples

  7. Skeletal Musculatory Integumentary (skin) Digestive Respiratory Circulatory Excretory Nervous Endocrine Immune Support and Protection Movement Protection Breaks down, absorbs food Absorbs O2, releases CO2 Transports food, O2, wastes Eliminates wates Sends electrical messages Sends chemical messages Fights illness/pathogens Organ Systems

  8. Peripheral Nervous System (branching out, toward the sides) nerves Central Nervous System Brain Spinal Cord 2 Divisions of the N.S.

  9. 3 Parts: Brain Cerebrum (thinking, reasoning, sensing) Cerebellum (routine motion, muscle coordination) Brain stem & medulla (involuntary actions: breathing, heart beat) Spinal cord Brings messages to and from the brain, travels through the vertebrae for protection If severed you are paralyzed from there down Nerves Motor Neurons (brain  muscles to move) Interneurons (from one neuron to another) Sensory Neurons (body  brain to sense: touch, smell, sound, taste, sight) One nerve cell = neuron, many neurons = nerve Nervous System

  10. Endocrine System • Signals are hormonesthat travel through the blood Ex: growth hormone, adrenaline • They fit like a lock and key with targetcells in the organ they will affect • Mmostact slowly over a long period of time • Glandsproduce hormones • Pituitary is the master gland • Hypothalamus in brain connects the Nervous and Endocrine Systems

  11. Immune System • Fights pathogens due to foreign antigens Bacteria, viruses, fungus • First line of defense = barriers • Skin*, saliva, tears • Nose hairs, mucus • Second line of defense=white blood cells • Macrophages “eat” pathogens • WBCs can produce antibodies to kill pathogens

  12. Control Systems Pre-write Now, discuss your pre-writing with your cluster. Adding and changing information is allowed if it makes yours better, but DO NOT COPY. On the back, make a template of how you will organize your 2 pages of information for each system. Show me to get your cardstock. Mrs. Boller will show how to make the foldable. You will need scissors. Get your # if using mine.

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