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 |
Biology: Chapter 1 - Biology in the 21st Century Flashcards
Primary tabs
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!