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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 |