Transcript flash cards
Chapter 15 Invertebrates An animal without a backbone Click for Term Invertebrate An animal without a backbone Click for Term A body plan in which two halves of an organism’s body are mirror images of each other Click for Term Bilateral symmetry A body plan in which two halves of an organism’s body are mirror images of each other Click for Term A body plan in which the parts of a body are arranged in a circle around a central point Click for Term Radial symmetry A body plan in which the parts of a body are arranged in a circle around a central point Click for Term Without symmetry Click for Term Asymmetrical Without symmetry Click for Term Group of nerve cells Click for Term Ganglia Group of nerve cells Click for Term The pouch where food is digested in animals Click for Term Gut The pouch where food is digested in animals Click for Term A cavity in the body of some animals where the gut and organs are located Click for Term Coelom A cavity in the body of some animals where the gut and organs are located Click for Term A circulatory system consisting of a heart that pumps blood through spaces called sinuses Click for Term Open circulatory system A circulatory system consisting of a heart that pumps blood through spaces called sinuses Click for Term A circulatory system in which a heart circulates blood through a network of vessels that forms a closed loop Click for Term Closed circulatory system A circulatory system in which a heart circulates blood through a network of vessels that forms a closed loop Click for Term One of many identical or almost identical repeating body parts Click for Term Segment One of many identical or almost identical repeating body parts Click for Term An external skeleton made of protein and chitin found in arthropods Click for Term Exoskeleton An external skeleton made of protein and chitin found in arthropods Click for Term An eye that is made of many identical units, or eyes, that work together Click for Term Compound eye An eye that is made of many identical units, or eyes, that work together Click for Term Feelers on an arthropod’s head that respond to touch or taste Click for Term Antennae Feelers on an arthropod’s head that respond to touch or taste Click for Term A jaw found on some arthropods Click for Term Mandible A jaw found on some arthropods Click for Term A process in which an insect or other animal changes form as it develops from an embryo or larva to an adult Click for Term Metamorphosis A process in which an insect or other animal changes form as it develops from an embryo or larva to an adult Click for Term An internal skeleton Click for Term Endoskeleton An internal skeleton Click for Term A system of water pumps and canals found in all echinoderms that allows them to move, eat, and breathe Click for Term Water Vascular System A system of water pumps and canals found in all echinoderms that allows them to move, eat, and breathe Click for Term