science of biology Flashcards
science
organized method using evidence to learn about the natural world
what is the purpose of science?
investigate and understand, develop problem solving skills, understand relationship between living and non living
the scientific method can be described using ____
pheoc
what is PHEOC?
problem, hypothesis, experiment, observation, conclusion
problem
question about natural world
hypothosis
proposed answer -picks side and predicts outcome
experiment
controlled method of testing problems
what variable will be changed?
independent- single thing we change on purpose
what variable do we measure for results?
dependent
observations
collection of data during experiment
qualitative
using descriptive words
quantitative
using numbers
conclusion
use data to either support or refuse the hypothesis- introduces the next problem/hypothesis
what is the difference between theory and hypothesis?
theory-heavily supported by evidence
what are the characteristics of living things?
- made up of units called cells
2.able to reproduce
3.universal genetic code
4.organisms grow and develop - metabolism
6.responds to envoirnment
7.maintains homeostasis
8.change over time