Biology In The 21st Century Flashcards
Biology
Study of all forms of life
Biosphere
All living things and all the places they are found
Organisms
Any individual living thing
What characteristics do all organisms share?
Need energy for a metabolism
Made of one or more cells
Respond to the environment
Have DNA that they pass on to an offspring
What must organisms maintain for survival?
Homeostasis
Homeostasis
Maintenance of constant internal conditions
Scientific method
An organized systematic approach used in scientific study for scientists to verify there and others work
What are the steps of the scientific method?
Observation
Form a hypothesis
Experimentation
Conclusion
Observation
Act of gathering data (qualitative and quantitative)
Qualitative data
No #s (hot, blue, cold, rainy)
Quantitative data
Information with #s (80%, temperature)
Hypothesis
Tentative or changeable explanation for what has been observed
Experimentation
A set of controlled observation that test the hypothesis and identify variables
Independent variable
The thing that you change in the experiment
Dependent variable
The thing that changes because you change the independent variable