2. Symbiotic Relationships and Metamorphosis By: Brianna Shields November 1, 2004

3. DO NOW Please lay your ecology flashcards out on your desk ( 4 across x 5 down) with the definition side up. Please lay your ecology flashcards out on your desk ( 4 across x 5 down) with the definition side up. Once I’ve checked yours, take turns working with your seat partner to learn the terms on your flashcards. Once I’ve checked yours, take turns working with your seat partner to learn the terms on your flashcards.

4. GOAL To distinguish developmental patterns found in various animals (Metamorphosis) To distinguish developmental patterns found in various animals (Metamorphosis) To compare several symbiotic relationships To compare several symbiotic relationships

5. Symbiosis Symbiosis Symbiosis 1. Close relationship between two organisms 2. One lives near, on or in the other

6. Symbiosis Commensalism Commensalism One organism benefits and the other is not effected Ex: 1. Tiny mites living on human eyebrows

7. Eyebrow Mites

8. Symbiosis Mutualism Mutualism Both organisms benefit Ex: 1. Bacteria in the human digestive system

9. Microbes in Human Gut

10. Symbiosis Parasitism Parasitism One organism benefits, the other is harmed Ex: Dog fleas

11. What type of symbiosis is this? Ruminants in cow gut, digest the hay/plant material. Cow food gets digested, ruminants get a meal Ruminants in cow gut, digest the hay/plant material. Cow food gets digested, ruminants get a meal

12. What type of symbiosis is this? Egyptian Plover removes parasitic insects from the backs of horses and cattle Egyptian Plover removes parasitic insects from the backs of horses and cattle

13. What type of symbiosis is this? Mosquitoes on humans Mosquitoes on humans

14. What type of symbiosis is this? Barnacles on the backs of crabs are fed as the crab moves through the water- but, the crab is left unaffected Barnacles on the backs of crabs are fed as the crab moves through the water- but, the crab is left unaffected

15. What type of symbiosis is this? Remora fish attach themselves by suckers to sharks. This allows them to filter in food while the shark swims- this relationship has no apparent effect on the shark Remora fish attach themselves by suckers to sharks. This allows them to filter in food while the shark swims- this relationship has no apparent effect on the shark

16. What type of symbiosis is this? The Yucca Moth obtains food from the Yucca plant- while in return carries pollen from plant to plant for reproduction The Yucca Moth obtains food from the Yucca plant- while in return carries pollen from plant to plant for reproduction

17. What type of symbiosis is this?

18. Life Cycles Complete Metamorphosis Complete Metamorphosis 1. Fast, drastic changes in the form of an organism 2. Appearance looks totally different in each stage 3. Ex: Butterfly, Ladybug, Frog

19. Butterfly Life Cycle

20. 1. Laid under leaves2. Caterpillar actively eats 3. Cocoon/ Chrysalis protects during development 4. Wings, bright colors sips liquids

21. Ladybug Life Cycle

22. 1. Yellow rice masses laid on a leaf 2. Long body, 6 legs, actively eats 3. Pupa revealed when larva splits open 4. Mobile (moves a lot)

23. 1. Egg masses laid in water 2. Tadpole/polliwog swims, eats, grows- has gills and tail 3. Tadpole with legs- sprouts arms and legs- has gills and tail 4. Froglet- has lungs, still has tail 5. Adult- no tail, uses lungs

24. Frog Life Cycle

26. Life Cycles Incomplete Metamorphosis Incomplete Metamorphosis 1. Slow, gradual changes in the form of an organism 2. Appearance doesn’t really change- young resembles adult 3. Ex: Grasshopper

27. 1. Egg on water surface or near water on plants 2. Nymph- actively feeds on algae- stays in water 3. Adult- has wings, leaves water, moves well

28. What type of metamorphosis does this life cycle represent? Explain…