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Biology chapter 1&2
Biology Test
| Term | Definition |
|---|---|
| Wax | Protection against water |
| Phosolipid | Structural forms, the membrane that surrounds cells decide waht goes in and out of cells |
| Fats | Long term energy storage, insulation |
| Atomic number | the number of protons in an atom |
| Biosphere | All ecosystems in the world-the thin layer of air, land and water that is home to all living things on Earth |
| Organ System | Organs working together to perform a function Ex. Digestive System |
| Individual/Organism | Any living thing |
| Community | Interacting populations in a given area Ex. Turtles and reeds in the water |
| Ecosystem | All of the communities and non-living things in an area Ex. Turtles, reeds, water |
| Population | A group of similar organisms living in the same place |
| Atom/Molecule | Basic unit of a chemical element/2 or more atoms bonded together |
| Cell | The smallest unit of life capable of carrying out all of the functions of living things |
| Tissue | A group of cells that work together to perform a specific funtion Ex. Muscle Tissue |
| Organ | 2 or more types of tissues working together to perform a specific function Ex. heart |
| Spontaneous Generation | a belief that life begins when an outside force enters a non-living thing |
| 5 charicteristics of living things | organization, energy, growth/development, reproduction, response adaption |
| Predator | organisms that kill and eat other organisms |
| Prey | an organism that gets killed and eaten |
| Redi's experiment | took 3 jars with meat-one open,one closed, one covered with mesh. open- had flies, closed-no flies, mesh-flies nearby |
| Pasteur's experiment | 2 jars with broth, curved neck, one open, one closed open grew bacteria from the air |
| Parasitism | A type of relationship that helps one partner and hurts the other |
| law and theory | Law- what happens, Theory- why it happened like that |
| Fact | is observable |
| Theory | is a possible explanation to try and understand something |
| Law | describes what happens based off of observations and facts |
| Commensalism | A type of relationship that benifits one partner and doesn't affect the other one |
| Mutalism | A type of relationship that helps both partners |
| Compound | 2 or more elements chemically combined |
| Covalent Bond | Sharing of electrons |
| Ionic Bond | Transfer of electrons |
| Nucleic Acids | Large complex molecules that carry genetic information |
| Protiens | Large complex molecules composed of smaller molecules called amino acid |
| Cellulose | A carb that's structural in plant cell walls |
| Steroids | Structural and control, choleserol part of the membranes that surround cells |
| Oil | Long term energy storage |
| DNA | A molecule that carries genetic information and determines traits. |
| Ecosystem | A community of living and nonliving things that interact with each other in a particular environment. |
| Homeostasis | The ability of an organism to maintain a stable internal environment. |
| Enzyme | A protein that acts as a catalyst for chemical reactions in living organisms. |
| Nucleus | The central part of a cell that contains genetic material. |
| Organism | A living thing that carries out life processes such as respiration and reproduction. |
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