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Animals & Humans Digestion & Excretion.

Published byМаргита Стојановић Modified over 5 years ago

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Presentation on theme: "Animals & Humans Digestion & Excretion."— Presentation transcript:

1 Animals & Humans Digestion & Excretion

2 Digestion/Obtaining Nutrients - Animals
Heterotrophs Filter feeders Detritivores Carnivores Herbivores

3 Intracellular digestion Extracellular digestion
Gastrovascular cavity Extracellular digestion Digestive tract – mouth, stomach, intestines

4 Specialized teeth and mouthparts

5 Length of digestive system
Crop, gizzard Rumen

6 Digestion/Obtaining Nutrients - Humans
Heterotrophs Digestion starts in the mouth Teeth and saliva

7 Digestive tract - mouth, stomach, small and large intestines
Digestion and absorption occurs Liver, gall bladder, pancreas produce chemicals that assist in digestion.

8 Enzymes Acids Villi

9 Excretion - Animals Removal of wastes (such as urea & ammonia, solid undigestable material, excess water, carbon dioxide) Diffusion Flame cells Nephridia

10 Malpighian tubules Cloaca Gills Intestines, anus Kidneys

11 Excretion - Humans Large intestine, rectum, anus Lungs Skin

12 Kidneys – filter waste from blood
Ureters, bladder, urethra

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