Bob Jones Life Science - Chapter 12
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| invertebrate | An animal that lacks a backbone.
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| filter feeder | An organism that obtains food from water circulating through the its body.
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| radial symmetry | A body pattern in which several different planes could divide an animal into equal halves.
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| nematocyst | A stinging cell used by cnidarians for defense or for capturing food.
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| bilateral symmetry | A type of symmetry in which there are two equal sides to an animal; only one plane can divide it into equal halves.
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| ganglion | A mass of nerve tissue;sometimes called a simple brain.
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| stimulus | Anything that causes a response in an organism.
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| closed circulatory system | A type of circulation in which the blood remains in vessels.
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| aortic arches | Organs that help to control blood pressure in earthworms.
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| water-vascular system | A series of canals and tubules in echinoderms; used for movement and feeding.
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| exoskeleton | An external skeleton composed of tough plates that protect and support certain animals.
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| compound eye | An eye having many small lenses that provides a mosaic of images rather than a single image
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| open circulatory system | The type of circulation in which the blood passes from blood vessels into body spaces around organs and tissues before returning to the heart.
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| tracheae | One of the tiny tubes that branch throughout the body, carrying air to the tissues; in humans and vertebrate animals, the tube that carries air between the pharynx and the lungs
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| metamorphosis | A changing of an animal's shape or form as the animal develops from an egg to an adult.
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| molting | To shed scales, feathers, fur or an exoskeleton
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| incomplete metamorphosis | Insect metamorphosis that includes three stages: egg, nymph, and adult.
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| nymph | The immature stage of an insect with incomplete metamorphosis.
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| complete metamorphosis | Insect metamorphosis that consists of four stages: eggs, larva, pupa, and adult.
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| larva | An immature stage in the life cycle of many animals.
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| pupa | A resting stage during the complete metamorphosis of certain insects.
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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.
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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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