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TLCbiology
Exploring Creation With Biology /mod. 11
| Definition | Term |
|---|---|
| - Animals that lack a backbone. | Invertebrates |
| - Animals that possess a backbone. | Vertebrates |
| - An organism possesses spherical symmetry if it can be cut into two identical halves by any cut that runs through the organism's center. | Spherical symmetry |
| - An organism possesses radial symmetry if it can be cut into two identical halves by any longitudinal cut through its center. | Radial symmetry |
| - An organism possesses bilateral symmetry if it can only be cut into two identical halves by a single longitudinal cut along its center which divides it into right and left halves. | Bilateral symmetry |
| - An outer layer of cells designed to provide protection. | Epidermis |
| - The jelly-like substance that separates the epidermis from the inner cells in a sponge. | Mesenchyme |
| - Flagellated cells that push water through a sponge. | Collar cells |
| - Cells that move using pseudopods and perform different functions in different animals. | Amebocytes |
| - A cluster of cells encased in a hard, spicule-reinforeces shell. | Gemmule |
| - A sessile, tubular form of a cnidarian with a mouth and tentacles at one end and a basal disk at the other. | Polyp |
| - A free-swimming cnidarian with a bell-shaped body and tentacles. | Medusa |
| - Animal tissue consisting of one or more layers of cells that have only one free surface, because the other surface adheres to a membrane or other substance | Epithelium |
| - The jelly-like substance that separates the epithelial cells in a cnidarian. | Mesoglea |
| - Small capsules that contain a toxin which is injected into prey or predators. | Nematocysts |
| - Organs that produces sperm. | Testes |
| - Organs that produces eggs. | Ovaries |
| - The end of an animal that contains its head. | Anterior end |
| - The end of an animal that contains its tail. | Posterior end |
| - A system designed to transport food and other necessary substances throughout a creature's body. | Circulatory system |
| - A system of sensitive cells that respond to stimuli such as sound, tough, and taste. | Nervous system |
| - Masses of nerve cell bodies. | Ganglia |
| - Possessing both the male and the female reproductive organs. | Hermaphroditic |
| - The ability to regrow a missing part of the body. | Regeneration |
| - A sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and performs respiration. | Mantle |
| - A tough, multilayered structure secreted by the mantle, generally used for protection, but sometimes for body support. | Shell |
| - A hump that contains a mollusk's heart, digestive, and excretory organs. | Visceral hump |
| - A muscular organ that is used for locomotion and takes a variety of forms depending on the animal. | Foot |
| - An organ covered with teeth that mollusks use to scrape food into their mouths. | Radula |
| - An organism with a single shell. | Univalve |
| - An organism with two shells. | Bivalve |
Created by:
mclaughlinfamily
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