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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.
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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