Scientific Thinking
Scientists use observations and data to form and test what?
Hypothesis
What is the variety of life across the biosphere called?
Biodiversity
What is a change in living things over time called?
Evolution
What variable is measured in an experiment?
Dependent Variable
What is the study and manipulation of DNA at the molecular level called?
Molecular Genetics
What stage involves considering data and conclusions from other scientists?
Analyzing Data
What do organisms use to maintain a stable internal environment?
Homeostasis
What term describes traits that help organisms survive?
Adaptation
What is the variable that a scientist changes?
Independent Variable
How do computer models help biological research?
They simulate complex systems that cannot be studied directly
What are scientific theories?
Well-supported explanations that can be revised/replaced
What is an organism’s chemical process of building up or breaking down materials called?
Metabolism
Why did certain finch beaks become more common?
Successful traits were inherited and passed to offspring
What type of data describes observations rather than numbers?
Qualitative
What is biotechnology?
the use of living organisms, cells, and biological systems to create products and technologies that improve human health and the environment.
What are scientists doing when they compare evidence with a hypothesis?
Testing the hypothesis
What is a physical environment where species interact with each other and nonliving things?
Ecosystem
Which finch would be best adapted to eating cactus?
The finch that eats cactus
Only one of these should be changed at a time during a controlled experiment.
Independent Variable
Studying indoor air pollutants and respiratory problems is an example of using biology to do what?
Improve human health
What should happen if new evidence contradicts a scientific theory?
The theory may be revised or replaced
What are similar organisms that can reproduce with one another called?
Species
Why would different finches not necessarily compete for the same food?
They eat different foods and therefore have less competition.
A hypothesis is always in a form of a ______.
What is the purpose of using biological technology to study complex systems?
To investigate biological processes that are difficult or impossible to study directly.