Do nematodes have a brain? In their overall structure, all nematode nervous systems exhibit a number of common, invariant features. The central nervous system consists primarily ofa so-called circumoral brainor nerve ring, consisting of annular neuropil that encircles the neck of the pharyngeal musc...
Do amphibians have a central nervous system? Do amphibians have a body temperature? Do amphibians care for their young? Do amphibians have scales and claws? Are earthworms reptiles or amphibians? Do amphibians have scales made of keratin?
What organs can you live without in the digestive system? What are the accessory organs of the digestive system? What is the respiratory organ of earthworms? What gas exchange occurs in the lungs? What organs are in the musculoskeletal system? What are the organs involved in external respirat...
Animalshavemotility duringatleastsomepart oftheirlifecycle. 4.Animalsarediploid •Thedominantgenerationinthelifecycleis thediploidgeneration. •Theirgametesareheterogametes(different sizes);eggsarelargerthansperm. •Gametesareproducedbymeiosis. •Atypicalanimal lifecycle: HumanLifeCycle 5.Animalshaveaperiod...