Digestion in other animals

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Digestion in other animals
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Digestion in other animals

• AMOEBA
• Ingest (phagocytosis) into vacuole
• Digest enzymes in vacuole
• Egest (exocytosis)

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Digestion in other animals

• HYDRA
• Secretes enzyme in tube
• Nutrients diffuse directly into cells

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Digestion in other animals

• EARTHWORM
• Mouth suck in dirt
• Crop store and moisten food
• Gizzard chew with gravel
• Intestine digest and absorb

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Digestion in other animals

• BIRD
• Similar to earthworm (crop gizzard)
• Has stomach (chemical digestion)
• Intestine - absorption

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Digestion in other animals

• COW
• Ruminant
• 4-chambered stomach (first 2 with bacteria to
  digest cellulose)
• Regurgitate to continue chewing and breakdown
  (chewing cud)

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SPECIAL COWS
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Digestion in other animals

• GRASSHOPPER
• Ingestion mouth, esophagus
• Midgut stomach for digestion
• Ceca special pouches for absorption
• Intestine reabsorb water and eliminate waste

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Grasshopper (cont)