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Do cocaine and chocolate come from the same plant species?
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1. Introduction to Biology
Introduction to Biology
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Why are clams referred to as filter feeders?
A
Because they break down large food items with strong jaws.
B
Because they obtain food by filtering small particles from the water using their gills.
C
Because they use their tentacles to capture prey directly.
D
Because they photosynthesize to produce their own food.
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Understand the term 'filter feeder': Filter feeders are organisms that obtain food by filtering small particles, such as plankton or detritus, from the surrounding water.
Recognize the anatomy of clams: Clams have specialized gills called ctenidia, which are adapted for both respiration and filtering food particles from water.
Clarify the feeding process: Water flows into the clam's body through an incurrent siphon, passes over the gills where food particles are trapped, and then exits through the excurrent siphon.
Eliminate incorrect options: Clams do not have strong jaws for breaking down food, do not use tentacles to capture prey, and do not photosynthesize as they are not autotrophic organisms.
Conclude why clams are filter feeders: Clams rely on their gills to filter small particles from water, making them filter feeders by definition.
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