| A | B |
|---|
| vertebrate | animal with a backbone |
| warm blooded | animal that is able to maintain a constant body temp. |
| cold blooded | animal that cannot maintain a constant body temp & must rely on the environment |
| unicellular | made of only one cell (living thing) |
| multicellular | an organism that is made of more than 1 cell |
| invertebrate | an animal that does not have a backbone |
| hypothesis | possible answer to a question or problem based on what you know |
| data | written observations or measurements that are recorded during an experiment |
| fair test | a controlled experiment, only one variable is changed |
| conclusion | interpreting the data to answer the original question or problem |
| data table | an organized arrangement of information in labeled rows & columns |
| graph | a diagram or picture display of data using bars, lines, or circles |
| cell | basic unit of structure & function in living things |
| biotic | anything that is living or was ever living at one time |
| abiotic | anything that is nonliving and has never been living |
| habitat | the place in which an organism lives and obtains the resources it needs to surive |
| population | a group of organisms of the same species living together in the same area |
| chromosome | rod like shape cell sturcture that directs the activities of a cell and passes on the traits of a cell to new cells |
| mitosis | process in which the nucleus of a cell divides into two nuclei and the formation of two new cells begins |
| carrying capacity | the maximum number of a population that a habitat can support |
| limiting factor | anything that prevents populations from growing larger than their habitat can support |
| endangered | low in population, low reproduction, in danger of becoming extinct. |
| extinct | when a species no longer exists |
| producer | organisms that produce their own food |
| consumer | an organism that must eat other organisms to obtain energy |
| decomposer | an organism that breaks down dead organisms into simpler substances |
| photosynthesis | the process by which plants use sunlight, CO2, and water to make food |
| cell wall | the outer, nonliving, layer in a plant cell that provides support |
| organelles | tiny parts of a cell that do specific jobs for the cell |
| cell membrane | the outer living layer in all cells |
| chloroplast | an organelle in a plant cell that gives color to the plant and is involved in photosynthesis |
| scientific model | a picture, diagram, or 3-dimensional object that represents a real object |
| variable | any factor that can change in an experiment |
| food web | overlapping food chains that represent all of the food and energy transfers in an ecosystem |
