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Test 1
Bio
| Question | Answer |
|---|---|
| Science | The process of using observations and experiments to draw evidence-based conclusions. |
| Anecdotal Evidence | An informal observation that has not been systematically tested. |
| Peer Review | A process in which independent scientific experts read scientific studies before their publication to ensure that the authors have appriately designed and interpreted their study. |
| Hypothesis | A testable and falsifiable explanation for a scentific observation or question. |
| Testable | A hypothesis that can be supported or rejected by carefully designed experiments or nonexperimental studies. |
| Falsifialble | A hypothesis that can be ruled out by data that shows that the hypothesis does not explain the observation. |
| Experiment | A carefully designed test, the results of which will either support or rule out a hypothesis. |
| Experimental Group | A group in an experiment that experiences the experimental intervention or manipulation. |
| Control Group | The group in an experiment that experiences no experimental intervention or manipulation. (Recieves placebo) |
| Placebo | A fake treatment given to control groups to mimic the experience of the experimental groups. |
| Placebo Effect | The effect observed when members of a control gorup display a measurable response to a placebo because they think that they are recieving "real" treatment. |
| Independent Variable | The variable, or factor, being deliberately changed in the experimental group. |
| Dependent Variable | The measured result of an experiment, analyzed in both the experimental and control groups. |
| Sample Size | The number of experimental subjects or the number of times an experiment is repeated. In human studies, sample size is the number of subjects. |
| Statistical Significance | A measure of confidence that the results obtained are real, rather than due to random chance. |
| Scientific Theory | A hypothesis that is supoorted by many years of rigorous testing and thousands of experiments. |
| Epidemiology | The study of patterns of disease in populations, including risk factors. |
| Correlation | A consistent relationship between two variables. |
| Randomized Clinical Trial | A controlled medical experiment in which subjects are randomly chosen to recieve either an experimental treatment or a standard (placebo) treatment. |
| Ecology | The study of the interactions between organisms, and between organisms and their nonliving environment. |
| Community | Interacting populations of different species in a defined habitat. |
| Ecosystem | All the living organism in an area and the nonliving components of the environment with which they interact. |
| Distribution Pattern | The way that organisms are distriuted in geographic space, which depends on resources and interactions with other members of the population. |
| Growth Rate | The difference between the birth rate and the death rate of a given population; also known as the rate of natural increase. |
| Exponential Growth | The unrestricted growth of a population increasing at a constant growth rate. |
| Logistic Growth | A pattern of growth that starts off fast and then levels off as the population reaches the carrying capacity of the environment. |
| Carrying Capacity | The maximum population size that a given environment or habitat can support given its food supply and other natual resources. |
| Population Density | The number of organisms per given area. |
| Density-Independent Factor | A factor that can influence population size and growth regardless of the numbers and crowding within a populaiton(For example weather.) |
| Pollen | Small, thick-walled plant structures that contain cells that will develop into sperm. |
| Pollination | The transfer of pollen from male to female plant structures so that fertilization can occur. |
| Keystone Species | Species on which other species depend, and whose removal has a dramatic impact on the community. |
| Community | A group of interacting populations of different species living together in the same area. |
| Stamen | The male reproductive structure of a flower, made up of a filament and an anther. |
| Pistil | The female reproductive structure of a flower, made up of a stigma, style, and ovary. |
| Seed | The embryo of a plant, together with a starting supply of food, all encased in a protective covering. |
| Food Chain | A linked series of feeding relationships in a community in which organisms further up the chain feed on ones below. |
| Producers | Autotrophs (photosynthetic organisms) that form the base of every food chain. |
| Consumers | Heterotrophs that eat other organisms lower on the food chain to obtain energy. |
| Predation | An interaction between two organisms in which one organism (the predator) feeds on another (the prey). |
| Herbivory | Predation on plants, which may or may not kill the plant being preyed upon. |
| Trophic Levels | Feeding levels, based on positions in a food chain. |
| Food Web | A complex interconnection of feeding relationships in a community. |
| Parasitism | A type of symbiotic relationship in which one member benefits at the expense of the other (the host). |
| Mutualism | A type of symbiotic relationship in which both members benefit; a win-win relationship. |
| Commensalism | A type of symbiotic relationship in which one member benefits and the other is unharmed. |
| Niche | The space, environmental conditions, and resources that a species needs in order to survive and reproduce. |
| Competetive Exclusion Principle | The concept is that when two species compete for resources in an identical niche, one is inevitably driven to extinction. |
| Ecosystem | The living and nonliving components of an environment, including the community of organisms present and the physical and chemical environment with which they interact. |
| Habitat | The physical environment where an organism lives and to which it is adapted. |
| Biome | A large geographic area defined by its characteristic plant life, which in turn it determined by temperature and levels of moisture. |
| Greenhouse Gas | Any of the gases in earth's atmosphere that absorb heat radiated from the earth's surface and contribute to the greenhouse effect, for example carbon dioxide and methane. |
| Greenhouse Effect | The normal process by which heat is radiated from the earth's surface and trapped by gases in the atmosphere, helping to maintain the earth at a temperature that can support life. |
| Global Warming | An increase in earth's average temperature. |
| Fossil Fuel | A carbon-rich energy source such as coal, petroleum, or natural gas, formed from the compressed, fossilized remains of once-living organisms. |
| Carbon Cycle | The movement of carbon atoms between organic and inorganic molecules in the environment. |
| Carbon Footprint | A measure of the total greenhouse gases we produce by our activities as humans. |
Created by:
Saki_Bombz
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