Unit 1 Week 1

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Prokaryotic

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A type of cell lacking a true nucleus and membrane-bound organelles, found only in the domains Bacteria and Archaea.

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Eukaryotic

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A type of cell with a true nucleus and membrane-bound organelles, found in the domains of Eukarya, including animals, plants, fungi, and protists.

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Unicellular

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Organisms consisting of a single cell, such as bacteria and many protists.

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Multicellular

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Organisms consisting of multiple cells, which may form tissues and organs, such as plants and animals.

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Heterotroph

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An organism that obtains its nutrients by consuming other organisms, unable to produce its own food.

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Autotroph

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An organism capable of producing its own food through photosynthesis or chemosynthesis, such as plants and some bacteria.

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Growth

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The process of increasing in physical size, a fundamental characteristic of living organisms.

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Development

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The process through which an organism undergoes changes in its life cycle, including growth and differentiation.

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Adaptation

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A trait or characteristic that enhances an organism's ability to survive and reproduce in a particular environment.