Search Results for: Crustaceans in shell
cephalocarida - horseshoe shrimps branchiopoda - brime shrimp maxillopoda - barnacles , fish lice, copepods , etc. ostracoda - seed shrimp malacostraca - lobsters , crabs , shrimp , etc. arthropods ( phylum arthropoda) are the largest phylum of animals and include the insects , arachnids , and crustaceans
a tough polysaccharide called chitin . the exoskeleton provides support and protection. periodically, an arthropod sheds this covering when it molts . arthropods also have a dorsal heart , a ventral nervous system , an open circulatory system , and a digestive system . arthropods play a major role in...
https://www.newworldencyclopedia.org/entry/Arthropod
benthos - wikipedia benthos from wikipedia, the free encyclopedia jump to navigation jump to search seaweed and two chitons in a tide pool benthos is the community of organisms that live on, in, or near the seabed , river , lake , or stream bottom, also known as the benthic zone . [ ] this community
lives in or near marine or freshwater sedimentary environments , from tidal pools along the foreshore , out to the continental shelf , and then down to the abyssal depths . many organisms adapted to deep-water pressure cannot survive in the upperparts of the water column . the pressure difference can...
https://en.wikipedia.org/wiki/Benthos