Animal Length of digestive system Diet Category Animal weight
Koala 305 cm herbivore 10 kg
Dog 135 cm carnivore 11 kg
Rabbit 272 cm herbivore 9 kg
Bobcat 145 cm carnivore 12 kg
What conclusion can you draw from the data in the table above regarding carnivores and herbivores?
(1 point)
Responses
The length of the digestive system is directly related to the weight of an animal.
The length of the digestive system is directly related to the weight of an animal.
There is no correlation between diet and length of digestive system.
There is no correlation between diet and length of digestive system.
Herbivores have shorter digestive systems than carnivores.
Herbivores have shorter digestive systems than carnivores.
Carnivores have shorter digestive systems than herbivores.
Carnivores have shorter digestive systems than herbivores.
A farmer wants to test the affects of a pesticide on his peach crop yield, so he sprays an orchard with the pesticide treatment. A second orchard does not receive the pesticide. In the fall, the number of peaches harvested from each orchard is counted. Which of the following is the independent (manipulated) variable in the experiment?(1 point)
Responses
the second orchard
the second orchard
the first orchard
the first orchard
the pesticide
the pesticide
the number of peaches
the pesticide
A theory(1 point)
Responses
is always true.
is always true.
is a problem to be solved.
is a problem to be solved.
is the opening statement of an experiment.
is the opening statement of an experiment.
may be revised or replaced.
may be revised or replaced.
Which of the following is not included in the design of an laboratory experiment?(1 point)
Responses
Problem statement
Problem statement
Procedure
Procedure
Materials used
Materials used
Conclusion
Conclusion
Scientists form hypotheses from which of the following?(1 point)
Responses
prior knowledge.
prior knowledge.
logical inferences.
logical inferences.
informed, creative imagination.
informed, creative imagination.
all of the above
all of the above
A scientist finds that her hypothesis is not supported by the data she gathered as a result of her experiment. What conclusion can she reach?(1 point)
Responses
The data do not support the hypothesis.
The data do not support the hypothesis.
Her observations were biased.
Her observations were biased.
The data are incorrect.
The data are incorrect.
The hypothesis is wrong.
The data do not support the hypothesis.
[This iYou suggest that the absence of water could slow the growth of mold on bread slices. This is a(an)
s the stem.](1 point)
Responses
hypothesis.
hypothesis.
experiment.
experiment.
analysis.
analysis.
conclusion.
hypothesis.
When/where are safety procedures important?(1 point)
Responses
in a laboratory.
in a laboratory.
in the field.
in the field.
with animals.
with animals.
all of the above
all of the above
A student getting a degree in environmental science performed a study to determine how the rate of photosynthetic activity in a local pond changed over the course of a year. The results are shown in the graph below.
Which conclusion is best supported by the evidence?
(1 point)
Responses
Photosynthetic organisms experienced die-off during the months of January through June.
Photosynthetic organisms experienced die-off during the months of January through June.
Photosynthetic organisms were dormant during the months of April through August
Photosynthetic organisms were dormant during the months of April through August
The rate of photosynthesis was greatest during the months of May through July
The rate of photosynthesis was greatest during the months of May through July
The rate of photosynthesis increased from June through December
The rate of photosynthesis was greatest during the months of May through July
What will you study in Biology?(1 point)
Responses
the land, water, and air on Earth.
the land, water, and air on Earth.
the living world.
the living world.
the environment.
the environment.
animals and plants only.
the living world.
A hypothesis becomes something different when an acceptable amount of experimental data supports it. What does it become?(1 point)
Responses
fact
fact
inference
inference
conclusion
conclusion
theory
theory
When is a hypothesis useful in science?(1 point)
Responses
When it is proven correct.
When it is proven correct.
When the explanation is already known.
When the explanation is already known.
When it can be proven incorrect.
When it can be proven incorrect.
When it can be tested.
When it can be tested.
What does a scientist test when using a controlled experiment?(1 point)
Responses
a conclusion.
a conclusion.
a mass of information.
a mass of information.
several variables.
several variables.
a single variable.
a single variable.
How would you describe the relationship between the two variables shown in the graph above (degree of slope and loss of soil from a container)?
(1 point)
Responses
Loss of soil decreases as slope increases.
Loss of soil decreases as slope increases.
The data indicates no relationship between the variables.
The data indicates no relationship between the variables.
Loss of soil increases as slope increases.
Loss of soil increases as slope increases.
Loss of soil increases as slope decreases.
Loss of soil increases as slope increases.
In the above experiment, which variable is the responding (dependent) variable?
(1 point)
Responses
degree of slope
degree of slope
soil type
soil type
loss of soil (g)
loss of soil (g)
air temperature
loss of soil (g)
Which of the following statements are valid steps in the scientific method? Select all that apply.(4 points)
Responses
Verify the question
Verify the question
Evaluate results
Evaluate results
Check the internet for previous experiments
Check the internet for previous experiments
Form a hypothesis
Verify the question
Evaluate results
Form a hypothesis