arthropoda
An Arthropod is an animal that comes from the Phylum Arthropoda, which in Greek means “jointed leg”. The
animals in this Phylum are invertebrates that have an exoskeleton, a segmented body, and jointed
appendages. This phylum contains creatures such as insects, arachnids, crabs, lobsters, etc.
animals in this Phylum are invertebrates that have an exoskeleton, a segmented body, and jointed
appendages. This phylum contains creatures such as insects, arachnids, crabs, lobsters, etc.
scorpion
Digestion begins outside the mouth. The food is digested by digestive juices that are supplied to the cavity by the gut, before it enters the scorpion's mouth. Setae, which is in the pre-oral cavity, filter indigestible material such as prey exoskeleton. These indigestible materials are matted together and expelled. Food passes from the mouth to the pharynx to the esophagus to the mid gut to the hind gut and is finally pushed out through the anus.
butterfly
The Butterflies Digestive system is located in the abdomen and is well concealed. The butterfly only eats and feeds on liquids: nectar, liquefied dung, sweat, mineral water, bodily fluids from decomposing animal corpses,etc. The butterfly then digests and extracts proteins and other minerals from these foods. Once this is completed the butterfly excretes waste in liquid form or as tiny fecal pellets from the anus.
spider
After capturing and poisoning their prey with their venom, spiders use two different systems of external digestion. Some pump digestive enzymes from the midgut into the prey and then suck the tissues of the prey into the gut, eventually leaving behind the empty body of the prey. Others grind the prey the bases of the pedipals, while flooding it with enzymes. In these species the bases of the pedipalps form a preoral cavity that holds the food they are processing. The spiders stomach acts as a pump that send food deeper into the spiders digestive system. The spiders mid gut handles most of where the nutrients is extracted from their food. At the end, most spiders convert nitrogenous bases into uric acid, which can be excreted as dry material. Finally, spiders use "little tubes" called Malphigian tubules to extract these wastes from the blood and get rid of it through the anus.