320 likes | 516 Views
Symbiotic Relationships and Metamorphosis. By: Brianna Shields November 1, 2004. DO NOW. Please lay your ecology flashcards out on your desk ( 4 across x 5 down) with the definition side up.
E N D
Symbiotic Relationships and Metamorphosis By: Brianna Shields November 1, 2004
DO NOW • 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.
GOAL • To distinguish developmental patterns found in various animals (Metamorphosis) • To compare several symbiotic relationships
Symbiosis 1. Close relationship between two organisms 2. One lives near, on or in the other Symbiosis
Commensalism One organism benefits and the other is not effected Ex: 1. Tiny mites living on human eyebrows Symbiosis
Mutualism Both organisms benefit Ex: 1. Bacteria in the human digestive system Symbiosis
Parasitism One organism benefits, the other is harmed Ex: Dog fleas Symbiosis
What type of symbiosis is this? • Ruminants in cow gut, digest the hay/plant material. Cow food gets digested, ruminants get a meal MUTUALISM
What type of symbiosis is this? • Egyptian Plover removes parasitic insects from the backs of horses and cattle MUTUALISM
What type of symbiosis is this? • Mosquitoes on humans PARASITISM
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 Commensalism
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 Commensalism
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 Mutualism
What type of symbiosis is this? Parasitism
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 Life Cycles
1. Laid under leaves 2. Caterpillar actively eats 4. Wings, bright colors sips liquids 3. Cocoon/ Chrysalis protects during development
2. Long body, 6 legs, actively eats 1. Yellow rice masses laid on a leaf Ladybug 3. Pupa revealed when larva splits open 4. Mobile (moves a lot)
1. Egg masses laid in water 5. Adult- no tail, uses lungs 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
Incomplete Metamorphosis 1. Slow, gradual changes in the form of an organism 2. Appearance doesn’t really change- young resembles adult 3. Ex: Grasshopper Life Cycles
3. Adult- has wings, leaves water, moves well 2. Nymph- actively feeds on algae- stays in water 1. Egg on water surface or near water on plants
What type of metamorphosis does this life cycle represent? Explain… Complete Metamorphosis
What type of metamorphosis does this life cycle represent? Explain… Complete Metamorphosis
What type of metamorphosis does this life cycle represent? Explain… Incomplete Metamorphosis
What type of metamorphosis does this life cycle represent? Explain… Complete Metamorphosis
What type of metamorphosis does this life cycle represent? Explain… Incomplete Metamorphosis
What type of metamorphosis does this life cycle represent? Explain… Incomplete Metamorphosis Head Lice