Chapter 12. Chapter 12 Graphic Content

Introduction

Graphic Content
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You must read each slide, and complete the question on the slide, before proceeding to the next one.

Instructions

Review the information provided in the graph to answer each question below.

After submitting your answer, you will be provided feedback to check if your response is correct.

(This activity contains 5 questions.)

Question 12.1

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At the most general level, you can conclude that having mycorrhizal fungi benefits a plant. To be more precise, you can conclude that plants with symbiotic mycorrhizal fungi have offspring that are more likely to survive than the offspring of plants without the fungi. This difference in offspring survival does not become apparent until sometime between 20 and 47 days after planting.

Question 12.2

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For the parents with mycorrhizal fungi, about 60% of their offspring were surviving after 47 days. For parents without mycorrhizal fungi, only about 30% of their offspring were surviving after 47 days.

Question 12.3

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It appears that for the 10-day and 20-day bars, there is no variance at all. In other words, 100% of the offspring were alive in both groups.

Question 12.4

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Based on the number of individuals observed in each group, the difference in survival recorded is unlikely to have occurred if there were, in fact, no true difference in survival. In other words, there is less than a 5% chance that the researchers would have found such a difference between the two groups due to random chance.

Question 12.5

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Because the difference in offspring survival appeared between 20 and 47 days after planting, it would be helpful to have data for some point within that interval, probably at the mid-point of 33 or 34 days after planting. This is the likely time when some significant differences in offspring quality appeared.

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