Zoology Chapter 28
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Exoskeleton | a tough external covering
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Chitin | a carbohydrate found in the exoskeleton
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Appendages | structures such as legs and antennae that extend from the body wall
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Tracheal tubes | a network of tubes used for breathing
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Spiracles | small openings located along the side of the body
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Book lungs | organs tht have layers of respiratory tissue stacked like pages of a book
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Malpighian tubules | saclike organs that extract wastes from the blood and then add them to feces, or digestive wastes, that move through the gut
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Molting | the shedding of the entire exoskeleton and the manufacture of a larger one to take its place
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Cephalothorax | is formed by fusion of the head with the thorax
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Thorax | lies just behind the head and houses most of the internal organs
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Abdomen | the posterior part of the body
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Carapace | part of the exoskeleton that covers the cephalothorax
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Mandible | a mouthpart adapted for biting and grinding food
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Chelipeds | the pair of legs that bear large claws which catch, pick up, crush, and cut food
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Swimmerets | flipperlike appendages used for swimming
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Chelicerae | mouthparts that contain fangs and are used to stab and paralyze prey
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Pedipalps | are longer than the chelicerae and are ususally modified to grab prey
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Spinnerets | organs that contain silk glands
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Incomplete metamorphosis | the immature forms of insects that undergo gradual metamorphosis
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Nymphs | these immature forms of insects lack functional sexual organs and other adult structures, such as wings
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Complete metamorphosis | these animals hatch into larvae that look and act differently than their parents. They feed in completely different ways from adults.
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Pupa | the state in which an insect changes from larva to an adult
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Pheromones | specific chemical messengers that affect the behavior or development of other individuals of the same species
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Society | a group of closely related animals of the same species that work together for the benefit of the whole group
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Castes | individuals within an insect society that perform particular tasks, or roles
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Endoskeleton | an internal skeleton that is formed of hardened plates of calcium carbonate
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Water vascular system | which is filled with fluid, carries out many essential body functions in echinoderms, including respiration, circulation, and movement
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Madreporite | sievelike structure which opens to the outside of the echinoderm
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Tube foot | a structure that operates much like a suction cup
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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