Digestion 3070

Più simili a questo

Jenny 64 y.o

da Emma Howard

Geography- Epping Forest

da ruby jordan

Circulation Map: Feed

da Jessica Hughes

Soils

da JUAN.MARTIN RASTELLINO

Digestion

Why do we need food?

Food = Nutritional Molecules

1. Fuel
2. Building blocks (synthesis during tissue growth/cell turnover)

Feeding Mechanisms

DEPOSIT FEEDERS (detritivory)

CARNIVORES

HERBIVORES

SUSPENSION/ FILTER FEEDING

sessile aquatic animals, sponges, hydra

ENDOCYTOSIS

pgagocytosis or phenocytosis

amoeba

SURFACE ABSORPTION

taenia

Animals can either wait or forage for food

Problems: Undernourishment vs Overnourishment