What is the name of the feeding organ used by most members of the Mollusca and how does it work?

What will be an ideal response?


Most mollusks (bivalves are an exception) feed by using a radula. The radula is a small, belt-shaped organ with scraping teeth embedded in the surface. It rubs or tears food from rocks or the flesh from whatever it's eating.

Biology & Microbiology

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Complete annotation of the human genome includes determining the location and function of:

A. genes known to code for proteins. B. genes, even if no protein product is produced. C. any nonrepeating sequences with known or proposed function. D. primarily genes related to genetic diseases of humans.

Biology & Microbiology

Which biome has a closed canopy?

a. tundra b. taiga c. tropical rain forest d. desert e. grassland

Biology & Microbiology

Which animal is critically endangered in the United States?

A) black-footed ferret B) mourning dove C) striped skunk D) coyote

Biology & Microbiology

The nervous system develops from the endoderm

Indicate whether the statement is true or false

Biology & Microbiology