| A | B |
|---|
| basic unit of structure and function of living things | cell |
| parts of a cell | cell structure |
| structures in the cytoplasm of a cell that carry out cell activities | organelles |
| structure that surrounds the cytoplasm of teh cell | cell membrane |
| stiff outer barrier of a plant cell, outside the cell membrane | cell wall |
| a gel like fluid that takes up most of the space inside a cell | vacuole |
| structure in the cell that transforms the energy in food | mitochondrion |
| structure in a acell that is involved in making proteins | endoplasmic reticulum |
| structure near the center of a cell that contains the cell | nucleus |
| a structure in a plant cell that contains chlorophyll | choroplast |
| all cells from other cells, basic structure and function of life, all organisms are made of cells | cell theory |
| during cell division | mitosis |
| cell division that produces sex cells | meiosis |
| in plants and animals, a group of cells that work together to do a job | tissues |
| in organism, structure made of two or more different tissues | orans |
| 4th level organism, made of organs work together with specific functions | system |
| process in cell, oxygen is chemically combined | respiration |
| organ system removes waste from body | excretory system |
| due to cellular division, intake nutrients | growth |
| to make more individually of the same species from a parent | reproduction |
| process of breaking down food into a from the body can use | digestion |
| movement of water or substances across the cell membrane | cellular transport |
| move water across the cell membrane | osmosis |
| move substances from high to low | diffusion |
| substance that an organism needs in order to survive and grow | nutrient |
| movement, cellular or flagella | locomotion |
| intake of nutrients | nourishment |
| green pigment in plants that captures the energy of sunlight for use in photosynthesis | chlorophyll |
| the study of how traits are passed form parent to offspring | genetics |
| deoxyribonucleic acid, material in cell nucleus, determines genetic trait | DNA |
| in a pair of alleles, the one that is masked | recessive |
| pair of alleles that determine a trait | dominant |
| a random change in genes | mutation |
| structure, behavior of other trait in an organism tha thelps it survive its environment | adaptation |
| organisms change over time, those with trats best for environment pass traits | natural selection |
| condition in which there are no more living members | extinction |
| all the living populaitons in an area along with nonliving parts of an environment | ecosystem |
| land dwelling | terestrial |
| no salt | freshwater |
| more than one individual or population tries to make use of the same limited resource | competition |
| mutualism, working together | cooperation |
| organism that makes its own food | producers |
| an organism that feeds on other organisms | consumers |
| simple organism breaks down dead organisms & waste & returns nutrients to environment | decomposers |
| relationship between spaces in which one species acts as food for another | predator |
| organism that is killed an eaten by another organism | prey |
| a close relationship between species | symbiotic relationship |
| role tha ta speices plays in a living community/ecosystem | niche |
| organism that feeds on cells, tissues, or fluids of another living organism | parasite |
| organism that supports a parasite | host |
| all the living populations in an area along with nonliving parts | ecosystems |
| a large region of land with a distinct climate an certain types of plant and animal life | biomes |
| marine | saltwater |
| change in growth of a plant in response to light | phototropism |
| a deep sleep in which body systems reduce to minimal levels | hibernation |
| a phase of little activity | dormancy |
| freshwater becomes overgrown with algae/green plants from human activities | eutrophication |
| all members of a speicies in an area at a time | population |
| theory based on scientific evidence of how organisms change over time | evolution |
| remains, impressions, tracks, or other evidence of ancient organisms | fossil record |
