JUST VOCAB ARTHROPODS Chapters 38 39 PRACTICE VOCAB

JUST VOCAB ARTHROPODS Chapters 38 & 39

PRACTICE VOCAB: Malpighian tubules Hollow projections of the digestive tract in arachnids and some insects that collect and remove nitrogen waste ___________ Paired sacs with many folds that resemble the pages of a book in the abdomen of arachnids that function in gas exchange __________ Book lungs Excretory organs in crayfish that ___________ Green glands remove excess water and nitrogen waste

PRACTICE VOCAB: Joining of an egg & sperm outside the female’s body __________ External fertilization Kind of development in which offspring are born/hatch looking Direct development like their parents only smaller __________ Kind of circulatory system in which blood is contained inside vessels closed _________ cheliped Large pincher claw on a crayfish _________

PRACTICE VOCAB: tracheae System of tubes in spiders that __________ carry air directly to the tissues through openings in the exoskeleton Appendages that manipulate maxilla food and draw water __________ currents over the gills in a crayfish Openings in the exoskeleton that let air into the trachea ___________ spiracles

PRACTICE VOCAB: vertebrate Organism with a backbone __________ Organism whose blastopore protostome becomes its mouth __________ Process of occasionally shedding ________ molting the exoskeleton of an arthropod so the organism can grow bigger Larger body section made by fusing smaller sections together Tagma _________ pl. Tagmata

PRACTICE VOCAB: Maintaining the correct balance of water and __________ osmoregulation ions in the body Appendages that aid in holding food and chewing __________ pedipalps in an ARACHNID Structures on the abdomen of a spider that release silk ___________ spinnerets

PRACTICE VOCAB: Joining of an egg & sperm inside the female’s body __________ Internal fertilization Kind of development in which development offspring hatch as larva and must Indirect __________ undergo metamorphosis to become adults Kind of circulatory system in which open blood is NOT contained in vessels _________ and flows loose inside the coelom eye made of many individual light detectors each with its own lens Compound eye ___________

PRACTICE VOCAB: invertebrate Organism without a backbone __________ Organism whose blastopore deuterostome becomes its anus __________ Parts that extend from the appendages surface of the body like arms, legs, _________ antenna, maxillipeds Pincer-like mouth parts seen chelicera in spiders, scorpions, ticks _________

PRACTICE VOCAB: Body cavity formed within the mesoderm that surrounds the internal organs __________ coelom Chewing mouthparts seen in crustaceans and insects __________ mandibles Outside body covering in an animal _________ integument Free-swimming larva of crustaceans nauplius with one eye and multiple appendages _______

PRACTICE VOCAB: telson Center section of a crayfish’s tail ____________ swimmerets Small appendages on the abdomen ___________ of a crayfish that create water currents and help in reproduction Large “feelers” on the head of a crayfish that sense touch and taste Body section posterior to the cephalothorax antenna _________ Abdomen ____________

PRACTICE VOCAB: The concentration of nervous tissue and sensory organs in the anterior end of an animal cephalization __________ In animals the body plan where the Bilateral left and right sides are mirror images symmetry of each other __________ Body section made by fusion of the head and thorax _________ cephalothorax Organisms with 10 legs decapods _________

PRACTICE VOCAB: uropods Side sections of a crayfish’s tail __________ that help in “tailflips” Term used to describe a female crayfish carrying eggs or larvae “In berry” __________ carapace Section of exoskeleton that _________ covers the cephalothorax in a crayfish Open circulation Type of circulation in which _________ hemolymph is NOT contained in blood vessels and flows loose inside the body spaces

PRACTICE VOCAB: chelicera “fangs” in a spider __________ Skeleton on the outside of the body exoskeleton __________ Holes in the crayfish’s heart _________ ostia that allow the return of blood Pincer-like mouth parts seen chelicera in spiders, scorpions, ticks _________

PRACTICE VOCAB: arteries Blood vessels that carry blood ____________ away from the heart cardiac Stomach closest to the mouth ___________ Gastric mill Teeth in the stomach of a _________ crayfish that help grind food Organisms with “jointed legs” Arthropods ____________

PRACTICE VOCAB: veins Blood vessels that carry blood back ____________ to the heart Subphylum that includes insects and myriapods leg with 2 branches Uniramia ___________ biramous _________ Nitrogen containing POLYSACCHARIDE that makes ____________ the exoskeleton on arthropods sturdy but flexible chitin