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Semester 1 Retest
| Term | Definition |
|---|---|
| communication | the process of sharing ideas and experimental findings with others through writing and speaking. |
| observing | using one of more of your senses to gather information. |
| making models | creating representations of complex objects or processes. |
| scale model | this accurately shows the proportions between its parts. |
| inferring | explain or interpret things you observe. |
| classifying | the process of grouping things based on their similarities. |
| quantitative observations | an observation that deals with a number or amount. |
| organ system | a group of organs that work together to perform a major function. |
| multi-cellular | composed of many cells. |
| cell theory | a widely accepted explanation of the relationship between cells and living things. |
| organelles | small structures that carry out specific functions within the cell. |
| mitochondria | rod-shaped structures that convert energy in food molecules to energy the cell can use. |
| ribosome | small, grain like bodies that function as factories to produce proteins. |
| chloroplast | captures energy from sunlight and uses it to produce food. |
| endoplasmic reticulum | helps form proteins and other materials, and also carries materials throughout the cell. |
| tissue | a group of similar cells that perform the same function |
| heterotroph | an organism that cannot make its own food |
| autotroph | an organism that makes its own food. |
| stomata | small openings on the undersides of leaves allowing for carbon dioxide to enter the plant. |
| photosynthesis | the process by which a cell captures energy from sunlight and uses it to make food. |
| chlorophyll | the main photosynthetic pigment in chloroplasts. |
| fermentation | an energy-releasing process that does not require oxygen. |
| hyposthesis | a possible explanation for a set of observations or answers to a scientific questions. |
| science | a way of learning about the natural world. |
| data | facts, figures, and other evidence gathered through observations. |