Anatomy - the study of the structure of animals,focusing on the internal and external body parts., Vertebrates - animals with a back-bone or spinal column, Invertebrates - animals that lack a backbone., Carnivores - animals that primarily eat other animals, Herbivores - - animals that primarily eat plants., Omnivores - animals that eat both plants and animals., Amphibians - cold-blooded vertebrates that live both in water and on land at different life stages., Reptilies - cold-blooded, scaly vertebrates that lay eggs., Mammals - warm-blooded vertebrates with fur or hair that produce milk for their young., Chordates - animal possessing a notochord at some stage in their development, Sexual dimorphism - differences in appearance between males and females of the same species., Migration - the seasonal or periodic movement of animals from one region to another., Feather - -a light growth that makes up the covering of a bird's body., Helminthology - is a branch of zoology that studies diseases of humans, animals and plants caused by parasitic worms., Arachnology - studies arachnids., Plankton - small animals and plants that live in the water column., Chitin - is a hard substance that makes up the external skeleton of most insects, crustaceans and other arthropods., Chelicerae - are two head appendages in spiders and scorpions., Symbiosis - mutually beneficial cohabitation of several different organisms., Ichthyology - is the study of fishes.,

zoology

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