Hydra is an example of ______________ feeder?
Correct answer: B. Macrophagous
- A. Fluid
- B. Macrophagous
- C. Fluid
- D. All of these
Explanation
Hydra captures relatively large solid prey with its tentacles and digests it in the gastrovascular cavity, so it is a macrophagous feeder. The likely mistake is fluid feeding, which involves taking in dissolved nutrients rather than whole prey.
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The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
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