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Ch. 1 Study of Life

Scientific Method and Characteristics of Living Things

TermDefinition
Biology study of life
what biologists do (5) study the diversity of life, research disease, develop technologies, improve agriculture, preserve the environment
organism anything that possesses all the characteristics of life
characteristics of living things (8) cells, organization, grows and develops, reproduces, responds to stimuli, requires energy, maintain homeostasis, adapts
cells basic unit of structure and function for all life
organization biological systems begin with atoms and increase in complexity
human organization (6) atoms, cells, tissues, organs, organ systems, organism
growth increase in mass
development process of natural changes throughout an organism's life
reproduce when a species creates an offspring in its likeness
stimuli anything that causes a reaction
response the reaction to a stimuli
energy fuel for an organism's life processes
homeostasis an organism's ability to regulate and maintain balanced internal conditions
adaptation inherited characteristics that result from changes to a species over time.
sun shining in your eyes is a __________, and your pupils constricting or closing is a __________ stimuli; response
getting taller is an example of __________, where going through puberty is an example of __________ growth; development
unicellular made of one cell
multicellular made of more than one cell
all cells come from pre-existing cells
a dog having puppies is an example of reproduction
a runner sweating to keep their body cool is an example of homeostasis
leaves that tip downward while its raining to direct the water to its roots is an example of adaptation
eating and chewing food to break it down for its chemicals is an example of energy
types of sciences biology, chemistry, physics
types of pseudoscience astrology, scientology, tarot cards
scientific law states the something will happen under certain conditions
theory attempts to explain why something happens
scientific literacy basic understanding of science and its processes
ethics set of morals and values
scientific method a series of steps a scientists uses to gather information and answer a question
observations process of gathering information in an orderly manner; factual
qualitative observations descriptive observations based on the 5 senses
quantitative observations observations based on measurements or numbers
inference thoughts or ideas based on what you know; an opinion, not a fact
hypothesis a testable explanation for a set of observations, problems or a question
variable the things that are changed in an experiment
control group nothing is changed and is the group the independent variable is compared to
experimental group the group that is being tested with the independent variable
independent variable the ONE things that is changed in an experiment
dependent variable the results that are measured based on the change in the independent variable
constants all the things that are not changed in an experiment
data is the information gathered from making observations (qualitative, quantitative or both) during an experiment
analyzing results Experiments must be repeated many times, with large sample sizes. After repeating, the results should always be the same before a valid conclusion can be reached.
conclusion A conclusion should include how the data supports or disproves the hypothesis.
peer review Findings are subject to examination and verification by other scientists. Findings should be unbiased.
Created by: rajeckit