NOTHING
The structure in humans that the digestive glands are comparable with crayfish are the glands that are found in the mouth and the stomach. These glands will secrete salivary amylase and HCI respectively to aid digestion in humans.
The digestive glands in a crayfish help to produce digestive enzymes that aid in breaking down food into nutrients that can be absorbed by the crayfish's body. These glands are essential for the digestion process and help ensure that the crayfish can obtain the necessary nutrients from its food.
Da vesteegeal structere of da apphendix.
These filter out waste materials in the crayfish. They perform basically the same function as our kidneys.
In grasshoppers, the structures that secrete enzymes into the digestive tract are primarily the salivary glands and the gastric caeca. The salivary glands produce digestive enzymes that are mixed with food during ingestion. The gastric caeca, which are finger-like projections extending from the midgut, also secrete enzymes that aid in the breakdown of food, enhancing nutrient absorption. These structures together facilitate effective digestion in the grasshopper.
The salivary glands, the gall bladder, the pancreas.
The external digestive glands associated with the human digestive system are the salivary glands, liver, gallbladder, and pancreas. These glands secrete substances that help in the breakdown of food and absorption of nutrients in the digestive process.
Frogs have three main types of digestive glands: mucous glands in the mouth to aid in swallowing, gastric glands in the stomach to produce digestive enzymes, and hepatic glands in the liver to release bile for fat digestion.
It excretes excess water.
nephridia
The excretory system of crayfish, which involves specialized structures called green glands for waste removal, is unlike the human excretory system, which primarily relies on the kidneys. The respiratory system of crayfish, which involves gills for gas exchange, differs from the human respiratory system that uses lungs.
There are two types of glands.Two salivary glands and pancreas.