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Notes #3

Notes #3. Zoo Scavenger Hunt #1. ALEXANDRIA CYCAD. Barrel Cactus. Spider Monkey Snow Monkey. Black Bear. Up to 600 lbs Up to 6 ft long. Polar Bear. Up to 1400 lbs Up to 10 ft. African Elephant. Asian Elephant. Ocelot. Snow Leopard. What is the unifying idea?. Ice cube

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Notes #3

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  1. Notes #3 Zoo Scavenger Hunt #1

  2. ALEXANDRIA CYCAD

  3. Barrel Cactus

  4. Spider Monkey Snow Monkey

  5. Black Bear • Up to 600 lbs • Up to 6 ft long

  6. Polar Bear • Up to 1400 lbs • Up to 10 ft

  7. African Elephant

  8. Asian Elephant

  9. Ocelot

  10. Snow Leopard

  11. What is the unifying idea? • Ice cube • Many small vs one large • Which melts faster? Why? • Warm up • Small cube highest surface area / volume • Largest cube (4 in) had smallest ratio

  12. Surface area to volume ratio in biology • Plants • Homeostasis of water • Gather sunlight • Animals • Homeostasis of temperature (thermoregulation) • Hummingbird: 3-4 years, 1260 bpm • Elephant: 50-60 years, • Mouse: 5 months / 2 yrs, 600 bpm

  13. Cells • Surface area to volume ratio limits cell size • Plasma membrane (pm) decides what can enter / leave cell • Less PM = less ability to exchange with environment. • Organs • Greater surface area = better ability to exchange nutrients / wastes

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