According to Yahoo!Education, an Annelida's digestive system revolves around a muscular gizzard and calciferous glands. Most annelids have soil diets and the gizzard grinds ingested soil to draw out the organic matter th... More »

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Insects, snails, crabs, lobsters and worms are all examples of invertebrate animals. Spiders and clams are other examples. Invertebrates are animals that do not have a backbone. More »

Earthworms are tube-shaped, segmented worms found living in soil, where they feed on organic matter. An earthworm's digestive tract is laid out straight from the oral orifice to the anus. The parts of the digestive tract... More »

The earthworm's crop is responsible for storing food after it has passed through the esophagus, which possesses calciferous glands that release calcium carbonate to help remove any excess quantities of calcium from the b... More »

The typhlosole in earthworms increases the surface area of the intestine for efficient secretion and absorption during digestion. It is named for the Greek word for "blind pipe," and the typhlosole can be defined as an e... More »

The grasshopper's digestive system is the system of organs and glands responsible for breaking down food for use by the body. It consists of the foregut, or stomodaeum; the midgut, or mesenteron; and the hindgut, or proc... More »

The small intestine is a part of the human body's digestive system, coming after the stomach and before the large intestine in the sequence of food digestion. At 5 meters long, it is also the longest organ in the digesti... More »