Lab: Interdependence of Organisms Answers

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number of seeds sprouted✔ plant growthworm growth

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number of worms✔ plant growthnumber of dead plants

In this experiment, you changed the and measured the effect of this change on the in the population.

Plant Growth

Do the data shown support the hypothesis?✔ yesnoinconclusive

The graph to the right represents the data of this lab using a scatterplothistogrambar graphpie graph. The

Classify the interaction between worms and lima bean plants: competitionpredationX mutualismcommensalismparasitism

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

amount of water given to the plants✔ number of worms in the soilenvironment in which the plants were placed

Consider the data summary above. After five weeks, the plants growing in soil containing worms grew an average of cm taller than plants growing without worms in the soil.

The graph to the right represents the data of this lab using a scatterplothistogram✔ bar graphpie graph. The

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.