Biology I Examination 1: Questions and Answers – Updated
Version
5 steps of scientific method - CORRECT ANSWER-1. observation
2. question
3. hypothesis
4. experiment
5. conclusion
observation - CORRECT ANSWER-act of viewing the world around us
question - CORRECT ANSWER-made based off of an observation
hypothesis - CORRECT ANSWER-a tentative explanation for an
observation
controlled experiment - CORRECT ANSWER-- test several groups
- introduce a single variable per treatment
- keep conditions as similar as possible from one group to the next
conclusion - CORRECT ANSWER-supports/refutes hypothesis
- more experimentation needed if refuted
,prediction - CORRECT ANSWER-a guess of what might happen based on
observation-- the outcome you would observe if your hypothesis was
supported
theory - CORRECT ANSWER-a sound explanation of the world supported
through continued observation and experiments over a long period of time
3 components of a controlled experiment - CORRECT ANSWER-1.
variable
2. test group
3. control group
variable - CORRECT ANSWER-feature of an experiment that is changed
from one treatment to the next
test group - CORRECT ANSWER-exposed to variable in an experiment
control group - CORRECT ANSWER-not exposed to the variable in an
experiment
importance of test group & control group - CORRECT ANSWER-they allow
researchers to determine whether the variable in an experiment has an
effect
independent variable - CORRECT ANSWER-manipulation performed on
the test group
(ex. hours of tutoring)
, which axis is the independent variable found on a graph? - CORRECT
ANSWER-x-axis
dependent variable - CORRECT ANSWER-effect that is being measured
(ex. test score)
which axis is the dependent variable found on a graph? - CORRECT
ANSWER-y-axis
theory of evolution - CORRECT ANSWER-set of hypotheses that provide a
powerful explanation for both biological observations & the diversity of life
why do we learn that the theory of evolution is the single most important
theory in all of biology? - CORRECT ANSWER-there's lots of evidence
from asking/testing good scientific questions
(ex. anatomy, fossil record, biogeography, molecular biology)
7 ways living organisms are different from non-living organisms -
CORRECT ANSWER-1. organization - complex organization
2. response - ability to change in response to the environment
3. reproduction - ability to reproduce
4. evolution - capacity to evolve
5. metabolism - chemical rxns that sustain life
6. homeostasis - maintenance of stable internal environment
7. growth - regulated growth/cell division
Version
5 steps of scientific method - CORRECT ANSWER-1. observation
2. question
3. hypothesis
4. experiment
5. conclusion
observation - CORRECT ANSWER-act of viewing the world around us
question - CORRECT ANSWER-made based off of an observation
hypothesis - CORRECT ANSWER-a tentative explanation for an
observation
controlled experiment - CORRECT ANSWER-- test several groups
- introduce a single variable per treatment
- keep conditions as similar as possible from one group to the next
conclusion - CORRECT ANSWER-supports/refutes hypothesis
- more experimentation needed if refuted
,prediction - CORRECT ANSWER-a guess of what might happen based on
observation-- the outcome you would observe if your hypothesis was
supported
theory - CORRECT ANSWER-a sound explanation of the world supported
through continued observation and experiments over a long period of time
3 components of a controlled experiment - CORRECT ANSWER-1.
variable
2. test group
3. control group
variable - CORRECT ANSWER-feature of an experiment that is changed
from one treatment to the next
test group - CORRECT ANSWER-exposed to variable in an experiment
control group - CORRECT ANSWER-not exposed to the variable in an
experiment
importance of test group & control group - CORRECT ANSWER-they allow
researchers to determine whether the variable in an experiment has an
effect
independent variable - CORRECT ANSWER-manipulation performed on
the test group
(ex. hours of tutoring)
, which axis is the independent variable found on a graph? - CORRECT
ANSWER-x-axis
dependent variable - CORRECT ANSWER-effect that is being measured
(ex. test score)
which axis is the dependent variable found on a graph? - CORRECT
ANSWER-y-axis
theory of evolution - CORRECT ANSWER-set of hypotheses that provide a
powerful explanation for both biological observations & the diversity of life
why do we learn that the theory of evolution is the single most important
theory in all of biology? - CORRECT ANSWER-there's lots of evidence
from asking/testing good scientific questions
(ex. anatomy, fossil record, biogeography, molecular biology)
7 ways living organisms are different from non-living organisms -
CORRECT ANSWER-1. organization - complex organization
2. response - ability to change in response to the environment
3. reproduction - ability to reproduce
4. evolution - capacity to evolve
5. metabolism - chemical rxns that sustain life
6. homeostasis - maintenance of stable internal environment
7. growth - regulated growth/cell division
