| A | B |
|---|
| plasma membrane | Surrounds cell, allows nutrients to enter and exit |
| nucleus | Control center of the cell |
| endoplasmic reticulum | Assembles proteins |
| Golgi complex | Packages proteins from the endoplasmic reticulum |
| vacuole | Stores nutrients for later use. |
| lysosome | Eliminates waste and foreign materials |
| mitochondria | The "power house" of the cell. |
| cytoskeleton | Acts as support/framework for the cell. |
| cell wall | Protective barrier found around plant and bacteria cells. |
| chloroplasts | Aids in the process of photosynthesis. |
| biology | Study of life. |
| scientific method | Common steps scientists use to gather information to solve problems. |
| quantitative data | Numerical data. |
| meter | Unit of length |
| gram | Unit of mass. |
| liter | Unit of volume. |
| second | Unit of time. |
| Celsius | Unit of temperature. |
| ecology | Study of how living things relate to each other and to their environment. |
| habitat | Place where an organism lives. |
| abiotic | Nonliving factors in an environment. |
| bacteria and fungus | Two types of decomposers. |
| sun | Plants get their energy from this. |
| autotrophs | Organisms that can make their own food. |
| heterotrophs | Organsims that cannot make their own food. |
| carnivore | Meat eaters. |
| herbivore | Plant eaters. |
| omnivore | Eats both meat and plants. |
| decreases | As energy flows through a food chain it _________. |
| niche | Role an organisms plays in its lifetime. |
| scavanger | organism that feeds off of dead organisms. |
| commensalism | One species benefits while the other is unaffected. |
| mutualism | Both species benefit. |
| photic zone | Sunlit region of the ocean. |
| aphotic zone | Cold, dark part of the ocean. |
| intertidal zone | Area of ocean between high and low tides. |
| climax community | A stable, mature community that undergoes little or no succession. |
| primary succession | Colonization of new sites by communities of organisms. |
| secondary succession | Sequence of community changes that takes place when a community is disrupted by natural disasters or human action. |
| biome | Large group of ecosystems characterized by the same type of climax community. |
| 75% | Percentage of the earth's surface covered by water. |
| greenhouse effect | Trapping of the sun's energy by the atmosphere. |
| carbon dioxide, methane, CFCs, nitros oxide | Four types of greenhouse gasses. |
| solid, liquid, gas | Three states matter exists in. (Hint: Think about the three states water exists in.) |
| atoms | Matter is made up of tiny particles called ________. |
| 3 | Amount of atoms in H2O. |
| element | Is hydrogen an element or compound? |
| compound | Is H2O an element or a compound? |
| nucleus | Center of an atom. |
| positive | Charge of a proton. |
| negative | Charge of an electron. |
| no charge | Charge of a neutron. |
| neutrons and protons | Particles that occupy the center of an atom. |
| electrons | What is shared in a covalent bond? |
| 2 | Number of hydrogen atoms in H2O. |
| sugars | Another name for carbohydrates. |
| amino acids | Building blocks of proteins. |
| fat | Another name for a lipid. |
| below | Acids have a pH ________ 7. |
| above | Bases have a pH _______ 7. |
| enzyme | Protein that speeds up a chemical reaction. |
| observation | First step in the scientific method. |
| hypothesis | Second step in the scientific method. |
| experiment | Third step in the scientific method. |
| data | Fourth step in the scientific method. |
| conclusion | Fifth step in the scientific method. |
| mm | Symbol for millimeter. |
| liter | L is the symbol for what metric unit? |
| kg | Symbol for kilogram. |
| 1000 | Amount of grams in a kilogram. |
| qualitative data | Verbal or descriptive data. |
