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Exam 1 General
| Term | Definition |
|---|---|
| 6 major groups of living things. | Bacteria, Archea, Protista, Plantae, Funghi, Animalia |
| 4 groups of Eukarya | Protista, Plantae, Funghi, Animalia |
| Archea | Domain of single-celled microorganisms that are prokaryotic, meaning they lack a defined nucleus. |
| Bacteria | Tiny, single-celled organisms that can be found almost everywhere on Earth, including inside and on the human body. |
| Protista | Diverse group of eukaryotic organisms that are primarily unicellular and do not fit into the categories of animals, plants, or fungi. |
| Prokarya | A single-celled organism whose cell lacks a nucleus and other membrane-bound organelles. |
| 2 domains of Prokarya | Bacteria, Archea |
| Hypotheses must be ________________. | Falsifiable |
| Testing of a hypothesis must be ______, _______, and _______. | Repeatable, falsifiable, quantifiable |
| P Value of < .01 = | Strong evidence against the null hypothesis. |
| P Value of .01 - .05 = | Some evidence against the null hypothesis. |
| P Value of > .05 = | Null hypothesis |
| Null Hypothesis | Statistical assumption that suggests there is no significant correlation between the variables being studied. |
| Standard error | Estimate of how far the sample mean is likely to be from the population mean. |
| Does a low standard of error provide strong evidence to support the hypothesis? | Yes |
| Standard deviation | Degree to which individuals within a sample differ from the sample mean. |
| If standard error bars don't overlap, does it indicate that the data is different from each other and provide evidence supporting the hypothesis? | Yes |
| Error bars | Show the margin of error for a survey estimate by showing how precise the estimate is. |
| Estimates based on large samples are _______ precise and have ______ margins of error. | more, smaller |
| Estimates based on smaller samples are _____ precise and have ______ margins of error | less, larger |
| When the error bars for two estimates do not overlap at all, it means the two estimates _________ significantly different from each other, statistically speaking. | are |
| Overlapping error bars often indicate that two estimates _____ significantly different from each other, statistically speaking. Is this always true? | are not, no |
| Is correlation the same as causation? | No |
| Correlation implies a _________ that needs to be ______. | relationship, tested |
| Regression analysis | Statistical method used to examine the relationship between a dependent variable and one or more independent variables. |
| What is the r value for the max positive correlation? | 1 |
| R value of 0.80 means | strong positive correlation |
| What is the r value for no correlation? | 0 |
| What is the r value for the max negative correlation? | -1 |
| R value of - 0.43 means | moderate negative correlation |
| Scientific Theory | A fundamental concept that is widely accepted due to the fact that it has been repeatedly tested and has not been falsified. |
| Scientific Law | A theory that has remained unchanged for a significant amount of time. |
| Is evolution a scientific law or theory? | Theory |
| Is gravity a scientific law or theory? | Law |
| 5 Characteristics of living things. | Metabolic processes, generative processes, responsive processes, control processes, structural organization. |
| Metabolic processes | total of all chemical reactions and associated energy changes that take place within an organism. |
| ADP molecule | Molecule that all living things use for storing energy. |
| Generative processes | Reproduction |
| Is a virus living? | Because it is not cellular some scientists say no, but others disagree |
| Cell | Self contained membrane unit |
| Abiotic | Non-living |
| Biotic | Living |
| Cell Theory | All living things are composed of cells which come from other cells and are the basic units of life and cell activity dictates the activity of the organism. |
| Homeostasis | Self regulating processes whereby biological systems maintain a relatively stable internal environment. |
| Father of gene theory | Gregor Mendel |
| Gene theory = | Genetic inheritance |
| DNA discovered by Watson, Crick and Franklin in | 1953 |
| DNA = | Complex molecule encoded with information to build and run a cell. |
| Segments of DNA that code for traits are called __________. | Genes |
| Inherited traits are passed down to the next generation by coping _____________________ | DNA sequences |
| _________ codes specific amino acids sequences that build proteins. | DNA |
| DNA sends the information to __________. | RNA |
| RNA does what? | Translates the information from DNA to create the protein. |
Created by:
mbruzzano
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