5. Suspension Feeders: Sift small particles from the water Substrate Feeders: Eat as they tunnel through their food Fluid Feeders: Suck nutrient-rich fluids from a living host Bulk Feeders: Eat large pieces of food
6. Intracellular Digestion: Food particles are engulfed by endocytosis and digested within food vacuoles that have fused with lysosomes Extracellular Digestion: Enzymatic hydrolysis occurs outside the cells in a gastrovascular cavity or alimentary canal
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