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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Which of the following accurately describes a feeding style?

a. Deposit feeders obtain nutrients from organic molecules insolution.

b. Deposit feeders scrape organic matter from solid material onwhich they live.

c. Fluid feeders digest organisms suspended in water.

d. Fluid feeders strain food with networks of mucus or bristlesand hairs.

e. Suspension feeders consume sizable food whole or in chunks.

Summary Introduction

Introduction:

Different animals have different feeding habits and hence, different modes of obtaining food and nutrition. There are four major types of animal classification based on their feeding habits; bulk feeders, deposit feeders, fluid feeders, and suspension feeders.

Explanation

The justification for the correct answer:

Option (b) states that deposit feeders scrape organic matter from solid material on which they live. This is a true statement as deposit feeders may either ingest bulk sediment and digest organic matter in it or may ingest only the most nutritious matter from that sediment. Earthworm is an example of deposit feeder that feeds on the soil as bulk sediment and feeds on any organic matter present in it, on the other hand, a fiddler crab uses its claws to pick up only selective food and ingests only the edible parts. Hence, option (b) is correct.

The justification for the incorrect answers:

Option (a) states that Deposit feeders obtain nutrients from organic molecules in

solution. This is an incorrect statement as the correct statement is that fluid feeders obtain nutrients from organic molecules in solution, deposit feeders feed on solid sediment. So, it is an incorrect option.

Option (c) states that Fluid feeders digest organisms suspended in water...

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