In this experiment, you changed the and measured the effect of this change on the in the population.
number of seeds sprouted✔ plant growthworm growth
The independent variable was the , and the dependent variable was the .
number of worms✔ plant growthnumber of dead plants
Titan triggerfish feed on coral, which is often buried under rocks on the sea floor. To access the coral, these fish turn over rocks. It has been shown that the absence of the titan triggerfish changes the population levels of other species of fish that live in the same coral-reef environment.One can conclude that the smaller fish speciestitan triggerfish prey species
are benefited by the smaller fish speciestitan triggerfishprey species.
The triggerfish are helpedharmedneither harmed nor helpedboth harmed and helped.
The relationship of the triggerfish and other fish is an example of competitionpredationmutualismcommensalismparasitism.
Do the data shown support the hypothesis?yesnoinconclusive
Question text not available
The graph to the right represents the data of this lab using a scatterplothistogram✔ bar graphpie graph. The
orange✔ blue bars best represent the group
Why does the y-axis of the graph show average height instead of the heights of all twelve individual plants?
In this lab, you collected data at the end of Weeks 1, 3, and 5. Suppose you had collected data every day for five weeks instead. Why would a line graph be a better format for this data than a bar graph? Check all that apply.
Check all strategies below that helped you decrease experimental error in this lab.
How could increasing the number of plants help you decrease error in the experiment? Check all possible reasons.
The results of this experiment show that plants grow more in soil containing worms than in soil without worms. Which factors below helped the plants grow taller? Check all that apply.
Classify the interaction between worms and lima bean plants: competitionpredationX mutualism✔ commensalismparasitism
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