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7th Grade Science
7th Grade Semester Test Pt 2
| Term | Definition |
|---|---|
| Pseudopod | a “false foot” or temporary bulge of cytoplasm used for feeding and movement in some protozoans |
| Algae | plantlike protists |
| Fungus | a eukaryotic organism that has cell walls, uses spores to reproduce, and is a heterotroph that feeds by absorbing its food |
| Plants | photosynthetic, body grows indefinitely, cell membranes stiffened by cellulose |
| Nonvascular plant | a low-growing plant that lacks true vascular tissue |
| Vascular plant | a plant that has a true vascular tissue |
| Phloem | the vascular tissue through which food moves in some plants |
| Xylem | the vascular tissue through which water and nutrients move in some plants |
| Germination | the sprouting of the embryo from a seed that occurs where the embryo resumes growth |
| Transpiration | the process by which water is lost through a plant’s leaves |
| Monocot | an angiosperm with one seed leaf |
| Dicot | an angiosperm that has two seed leaves |
| Animals | capable of moving and feeling, cell membranes are flexible and permeable |
| Regeneration | the ability of an organism to re-grow lost parts |
| Vertebrate | an animal that has a backbone |
| Invertebrate | an animal that does not have a backbone |
| Exoskeleton | a waxy, waterproof outer shell or outer skeleton that protects the animal and helps prevent the evaporation of water |
| Endoskeleton | an internal skeleton |
| Herbivore | a consumer that eats on plants |
| Carnivore | a consumer that eats only animals |
| Omnivore | a consumer that eats both plants and animals |
| Autotroph | an organism that makes its own food |
| Heterotroph | an organism that cannot makes its own food |
| Producer | an organism that can make its own food |
| Consumer | an organism that obtains energy by feeding on other organisms |
| Decomposer | an organism that breaks down chemicals from waste and dead organisms, and returns important materials to the soil and water |
| Peristalsis | involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system |
Created by:
dguilliams
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