10.19 - walking c moving in air i gravity 1 lightweight a...

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ANIMALS 1. Homeostasis – maintaining balance a. Internal features i. Organs – balancing nutrients, gases and waste b. External features i. Body coverings – balance moisture, temperature 1. Exoskeleton 2. Shell ii. Skeleton body coverings 1. scales 2. skin 3. hair 2. Movement a. Moving in water i. Problem: buoyancy 1. siphons – act as pumps a. helps move water also helps breathing b. swim bladder – raise and lower the fish 2. resistance a. hydrodynamic shape b. fins and flippers i. hydrodynamic also b. moving on land i. inconsistent surfaces 1. crawling 2. creeping (looping) – catapillar 3. swinging a. tail ii. large distances 1. leaping 2.
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Unformatted text preview: walking c. moving in air i. gravity 1. lightweight a. hollow bones 2. strong muscles d. land and air movement - gliders 3. Senses and Communications a. senses i. Hearing ii. Sight iii. Touch iv. Smell/Taste b. Communications – sending messages i. Pheromones – chemical messages 1. chemical messages persist but ar hard to vary ii. Tactile communication 1. touch helps establish social bonds iii. visual communication 1. effective over short distances iv. auditory communication 1. sound is effective over short and long distances 2....
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This note was uploaded on 03/15/2009 for the course BI 101 taught by Professor King,k. during the Spring '08 term at Oregon State.

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10.19 - walking c moving in air i gravity 1 lightweight a...

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