 | Term | Definition |
| |
autotroph |
An organism that captures energy from sunlight and uses it to produce energy-rich carbon compounds, usually through the process of photosynthesis. |
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behavior |
An organism's action in response to a stimulus. |
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cellular respiration |
A process in which cells use oxygen to release energy stored in sugars. |
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fertilization |
Part of the process of sexual reproduction in which a male reproductive cell and a female reproductive cell combine to make a new cell that can develop into a new organism. |
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heterotroph |
An organism that consumes other organisms to get energy. |
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hibernation |
A sleeplike state in which certain animals spend the winter. Hibernation reduces an animal's need for food and helps protect it from the cold. |
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hyphae |
Threadlike tubes that form the structural parts of the body of a fungus. |
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meiosis |
A part of sexual reproduction in which cells divide to form sperm cells in a male and egg cells in a female. This occurs only in reproductive cells. |
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migration |
The movement of animals from one region to another in response to changes in the seasons or the environment. |
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organ |
A structure in a plant or animal that is made up of different tissues working together to perform a particular function. |
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photosynthesis |
The process by which green plants and other producers use simple compounds and energy from light to make sugar, an energy-rich compound. |
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sexual reproduction |
A type of reproduction in which male and female reproductive cells combine to form offspring with genetic material from both cells. |
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spore |
A single reproductive cell that can grow into a multicellular organism. |
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stimulus |
Something that causes a response in an organism or a part of the body. |
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tissue |
A group of similar cells that together perform a specific function in an organism. |
