Biology I Exam #1 Questions and Answers
with Verified Solutions | Latest Updated 2026
5 steps of scientific method 1. observation
2. question
3. hypothesis
4. experiment
5. conclusion
observation act of viewing the world around us
question made based off of an observation
hypothesis a tentative explanation for an observation
controlled experiment - test several groups
- introduce a single variable per treatment
- keep conditions as similar as possible
from one
group to the next
conclusion supports/refutes hypothesis
- more experimentation needed if refuted
prediction a guess of what might happen based on
observation-- the outcome you would
observe if
your hypothesis was supported
, theory a sound explanation of the world
supported
through continued observation and
experiments
over a long period of time
3 components of a controlled 1. variable
experiment 2. test group
3. control group
variable feature of an experiment that is changed
from one
treatment to the next
test group exposed to variable in an experiment
control group not exposed to the variable in an
experiment
importance of test group & control they allow researchers to determine
group whether the
variable in an experiment has an effect
independent variable manipulation performed on the test group
(ex. hours of tutoring)
which axis is the independent x-axis
variable found on a graph?
dependent variable effect that is being measured
(ex. test score)
with Verified Solutions | Latest Updated 2026
5 steps of scientific method 1. observation
2. question
3. hypothesis
4. experiment
5. conclusion
observation act of viewing the world around us
question made based off of an observation
hypothesis a tentative explanation for an observation
controlled experiment - test several groups
- introduce a single variable per treatment
- keep conditions as similar as possible
from one
group to the next
conclusion supports/refutes hypothesis
- more experimentation needed if refuted
prediction a guess of what might happen based on
observation-- the outcome you would
observe if
your hypothesis was supported
, theory a sound explanation of the world
supported
through continued observation and
experiments
over a long period of time
3 components of a controlled 1. variable
experiment 2. test group
3. control group
variable feature of an experiment that is changed
from one
treatment to the next
test group exposed to variable in an experiment
control group not exposed to the variable in an
experiment
importance of test group & control they allow researchers to determine
group whether the
variable in an experiment has an effect
independent variable manipulation performed on the test group
(ex. hours of tutoring)
which axis is the independent x-axis
variable found on a graph?
dependent variable effect that is being measured
(ex. test score)
