PSSC 330 Lecture Notes - Lecture 7: Cutin, Pectin, Centaurea
10 Oct 2016
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Expend a lot of energy, time, distance searching for food. Few prey/day (don"t have opportunity of complex digestive system to spend a long time chewing to get nutrients) Low amount of energy, time, travel required for food. Structural carbs: carbohydrates in the cell wall (lignin, hemicellulose, cellulose). When plants die (due to low water), structural carbs move to cell wall to add structural strength (increase lignin) since animal cells don"t have a cell wall, no ability to move anything to cell wall herbivores vs carnivores: **cellular components going into system is different; digestion is different** Canines (good for killing) omnivore combo of canines and flat teeth in back herbivore flat big teeth. Longer head frame (longer tongue for gathering grass) Ruminants clip with bottom teeth, depending on species use both teeth to clip. Can see 90 degrees or less (they are the attackers) Must have good vision to look ahead for prey.
