Biology: Chapter 1 - Biology in the 21st Century Flashcards
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| 2721290625 | biosphere | all organisms and the part of Earth where they exist. |  | 0 |
| 2721290626 | biodiversity | variety of life within an area. |  | 1 |
| 2721290627 | species | a group of organisms so similar to one another that they can breed and produce fertile offspring. |  | 2 |
| 2721291085 | biology | scientific study of all forms of life. |  | 3 |
| 2721291545 | organism | any individual living thing. |  | 4 |
| 2721291546 | cell | basic unit of life. |  | 5 |
| 2721291707 | metabolism | all chemical processes that synthesize or break down materials within an organism. |  | 6 |
| 2721291708 | DNA | (deoxyribonucleic acid) molecule that stores genetic information in all organisms. |  | 7 |
| 2721291709 | system | changing, organized group of related parts that interact to form a whole. |  | 8 |
| 2721292157 | ecosystem | collection of organisms and nonliving things, such as climate, soil, water, and rocks, in an area. |  | 9 |
| 2721292158 | homeostasis | regulation and maintenance of constant internal conditions in an organism. |  | 10 |
| 2721292266 | evolution | change in a species over time; process of biological change by which descendents come to differ from their ancestors. |  | 11 |
| 2721292267 | adaptation | inherited trait that is selected for over time because it allows organisms to better survive in their environment. |  | 12 |
| 2721292614 | observation | using the senses to study the world; using tools to collect measurements; examining previous research results. |  | 13 |
| 2721292615 | data | observations and measurements recorded during an experiment. |  | 14 |
| 2721292616 | hypothesis | proposed explanation or answer to a scientific question. |  | 15 |
| 2721293379 | experiment | process that tests a hypothesis by collecting information under controlled conditions. |  | 16 |
| 2721293380 | independent variable | condition or factor that is manipulated by a scientist during an experiment. |  | 17 |
| 2721293565 | dependent variable | experimental data collected through observation and measurement. | | 18 |
| 2721293566 | constant | condition that is controlled so that it does not change during an experiment. |  | 19 |
| 2721293567 | theory | proposed explanation for a wide variety of observations and experimental results. |  | 20 |
| 2721293845 | microscope | tool that provides an enlarged image of an object. |  | 21 |
| 2721293846 | gene | specific region of DNA that codes for a particular protein. |  | 22 |
| 2721293996 | molecular genetics | study of DNA structure and function on the molecular level. |  | 23 |
| 2721293997 | genomics | study and comparison of genomes within a single species or among different species. |  | 24 |
| 2721293998 | biotechnology | use and application of living things and biological processes. |  | 25 |
| 2721294519 | transgenic | organism whose genome has been altered to contain one or more genes from another organism or species. |  | 26 |