GENERAL HISTOLOGY

OESOPHAGUS STOMACH

ECHINODERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
These animals eat ____ for energy.
A
dead and decaying matter
B
plants
C
worms
D
mollusk
Explanation: 

Detailed explanation-1: -Most molluscs are herbivorous, grazing on algae or filter feeders. For those grazing, two feeding strategies are predominant. Some feed on microscopic, filamentous algae, often using their radula as a ‘rake’ to comb up filaments from the sea floor.

Detailed explanation-2: -Many mollusks eat mostly algae. They use the radula to scrape algae off rocks. But larger mollusks have a greater appetite. Snails and slugs eat plants and fruit.

Detailed explanation-3: -Most bivalve species acquire energy and nutrients through filter feeding. Filter feeding or suspension feeding is the process of ingesting water and filtering out food particles. Invertebrate examples of filter feeders include sponges, corals, and bivalve molluscs.

Detailed explanation-4: -HOW DO MOLLUSKS FEED? Most mollusks have a rasping tongue called a radula, armed with tiny teeth. This scrapes tiny plants and animals off rocks or tears food into chunks. Bivalves, such as oysters and mussels, filter food particles from the water with their gills.

There is 1 question to complete.