What are the Differences between the excretory system of man and earthworm?

Answer 1

Most part of the two is similar in that the food goes in from the mouth and the waste products comes out of the anus. But the earthworms use small stones, which they consumed, in the gizzard to grind down food as oppose to human with a stomach. Human do not need to use little stones and food is both mechanically and chemically digested in the stomach.

Answer 2

The eartworm's digestive system is : mouth- pharynx- esophagus- crop- gizzard- intestine- anus

Meanwhile the grasshopper's is shorter, it is: mouth- esophagus- crop- gizzard- midgut- hindgut- anus

Answer 3

There are no villi in the small intestine of a frog. The frog's digestive system begins with the mouth. Frogs have teeth along their upper jaw called the maxillary teeth, which are used to grind food before swallowing. These teeth are very weak, and cannot be used to catch or harm agile prey. Instead, the frog uses its sticky tongue to catch food (such as flies or other insects). The food then moves through the esophagus into the stomach. The food then proceeds to the small intestine (duodenum and ileum) where most digestion occurs. Frogs carry pancreatic juice from the pancreas, and bile (produced by the liver) through the gallbladder from the liver to the small intestine, where the fluids digest the food and extract the nutrients. When the food passes into the large intestine, the water is reabsorbed and wastes are divided into liquids and solids. Liquid wastes go to the urinary bladder, while solids are routed to the cloaca. All wastes exit the body through the cloaca and the cloacal vent.

The human digestive tract is the system of organs within multicellular animals that takes in food, digests it to extract energy and nutrients, and expels the remaining waste. The major functions of the GI tract are ingestion, digestion, absorption, and defecation.

The GI tract differs substantially from animal to animal. Some animals have multi-chambered stomachs, while some animals' stomachs contain a single chamber. In a normal human adult male, the GI tract is approximately 6.5 meters (20 feet) long and consists of the upper and lower GI tracts. The tract may also be divided into fore gut, mid gut, and hind gut, reflecting the embryological origin of each segment of the tract.

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Answer 4

State 4 similarities between the alimentary canal of earthworm and grasshopper

Answer 5

earthworms have more complex digestive systems than flatworms