Justice League: Heisenberg(Hersh), The Dark Knight(Shivam) Martian Man Hunter (Nolan), Ajay Patel(Ajay)

 3 (Triploblastic)  Mesoderm  Endoderm  Ectoderm  Have a body cavity

 Bilateral  Cut in half to have two mirror halves

 Coelomates  A true coelom which forms from mesoderm. Animals with true coeloms are coelomates.

 Complete, containing mouth and anus.  Arthropods are protostome animals (first opening in the embryo becomes the mouth).

 Eyes, olfactory receptors, and antennae that function in touch and smell. Most sensory organs are concentrated at the anterior end of the animal.

 The body of an arthropod is divided into a series of semi- repetitive segments.  Each segment bears a pair of appendages such as antennae, legs, wings, or mouthparts.  Segmentation enables the arthropod body to develop specializations in each region of the body for specific functions such as feeding, sensory perception, locomotion, and visceral functions.

 Covered by the cuticle (exoskeleton)  Invertebrates (no backbone)  Protects the animal and provides points of attachment for the muscles that move the appendages  General appendages include antennas, legs, and claws, modified mouth parts

 Open circulatory system  A fluid called hemolymph is propelled by a heart through short arteries and then into spaces called sinuses surrounding the tissues and organs.  Hemolymph reenters the arthropod hearth though pores that are usually equipped with valves.

 A variety of specialized gas-exchange organs that allow the diffusion of respiratory gases in spite of the exoskeleton.

 Arthropods reproduce sexually, as well as asexually.  In most terrestrial arthropods, sexual reproduction is carried out internally. In most aquatic arthropods, sexual reproduction occurs externally (eggs).  During asexual reproduction, parthenogenesis occurs. Parthenogenesis is when an unfertilized egg can develop into a new arthropod.

 Arthropods live in nearly all environmental habitats of the biosphere  Land, Ocean, Lakes, Air, Arctic