what animals do to survive: 1. feeding:. herbivore = eats plants carnivore = eats animals omnivore =...
Post on 12-Jan-2016
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What animals do to survive:
1. Feeding:
Herbivore = eats plantsCarnivore = eats animalsOmnivore = eats plants and animalsDetritivore = feed on decaying organic materialFilter Feeders = aquatic animals that strain food from waterParasites = lives in or on another organism (symbiotic relationship)
2. Respiration:
Take in O2 and give off CO2 Use: Lungs, gills, through skin, simple diffusion
3. Circulation:Very small animals rely on diffusionLarger animals have circulatory system
4. Excretion:
Remove waste products from the body.Specialized organs like kidneys in complex animals.
5. Response to stimuli:Receptor cells pick up stimuli = sound, light, external stimuli
6. Movement:Most animals are motile (can move)Muscles usually work with a skeleton
7. Reproduction:Most reproduce sexually = genetic diversity
Many invertebrates can also reproduce asexually = to increase their numbers rapidly
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