An assumption based on prior experience

• observation
• inference
• theory
• hypothesis

Explanation of a natural phenomenon based on many observations and investigations over time

• observation
• inference
• theory
• hypothesis

Science of life

• law
• theory
• biology
• organism

regulation of an organism's internal environment to maintain conditions needed for life

• hypothesis
• development
• homeostasis
• biology

results in different abilities in an organism

• species
• development
• biology
• theory

the one factor that can be changed in a controlled experiment

• dependent variable
• independent variable
• theory
• law

a group of organisms that can interbreed and produce fertile offspring

• organism
• homeostasis
• biology
• species

factor being measured in a controlled experiment

• dependent variable
• independent variable
• theory
•  law

anything that has or once had all the characteristics of life

• biology
• organism
•  species
• development

describes relationships that occur in nature

• biology 
• theory
• law
• homeostasis