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What is Life Quiz #1
| Term | Definition |
|---|---|
| Organism | an individual animal, plant, or single-celled life form. |
| Unicellular | single celled organism |
| Multicellular | organisms composed of many cells |
| Stimulus | a change in an organisms surroundings that causes the organism to react |
| Response | an action in an organisms behavior |
| Spontaneous generation | belief that living things can arise from non living things |
| Controlled experiment | an experiment where an observer tests a hypothesis and observes results |
| Autotroph | a self feeder and can make its own food |
| Heterotroph | an organisms ability to obtain energy by feeding on other organisms |
| Homeostasis | the organisms ability to maintain stable conditions |
| Chloroplast | the part of a plant cell where photosynthesis takes place and food is made for the organism |
| Cuticle | the waxy water proof layer on leaves that helps produce water loss |
| Vascular tissue | a system of tube-like structures through which water, food and minerals move from one part of the plant to another |
| Vascular plants | plants that contain vascular tissue |
| Non-vascular plant | plants that don’t contain vacular tissue |
| Phloem | the vascular tissue through which glucose travels |
| Xylem | the vasscular tissue through which water moves |
| Pollen | male reproductive plant cell, transfers from one plant to another to fertilize female plant cell |
| Seed | a fertilized egg |
| Seed coat | the waxy layer around a seed that prevents water leakage |
| Embryo | the undeveloped plant |
| Cotyledon | the baby seeds food source |
| Germination | the process of the embryo starting to grow |