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Which statement describes the best procedure to determine if a vaccine for a disease in a certain bird species is effective?
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
Diagrams, tables and graphs are used by scientists mainly to:
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
Conclusions based on an experiment are most likely to be accepted when:
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
A student is investigating the effect of different environmental factors on the growth of a certain species of bean plant. Which factor would NOT function as a variable?
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
Which statement about the use of independent variables in controlled experiments is correct?
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
The development of an experimental research plan should NOT include a:
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
The first trial of a controlled experiment allows a scientist to isolate and test:
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
A scientist performed an experiment to see the effects of a scary movie on the heart rate of people watching the movie. In this experiment, the dependent variable is:
they are consistent with experimental data and observations
Species of bean plant
Only one independent variable is used for each experiment
vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 birds to the disease.
organize data
a single variable
conclusion based on data expected to be collected in the experiment
the heart rate
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