Question 17 (2 points) Concern over the loss of local biodiversity has increased

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Question 17 (2 points) Concern over the loss of local biodiversity has increased the urgency of understanding its consequences for ecosystem function in many habitats. Researchers compared the effect of intertidal seaweed species richness (monoculture vs. polyculture) and species identity (Cladophora, Endocladia, Mastocarpus, and Pelvetiopsis) on biomass accumulation in a mesocosm experiment. At the end of the experiment, they compared the proportional change in biomass among treatment groups (richness: F1 ,141 = 0.001, p = 0.870; identity: F3, 14,-57.4, p

Explanation / Answer

21. The null hypothesis for this experiment is having equal mean biomass in every group.

22. The biomass was significantly different in response to both species richness and identity.

23.The data given, in both option a and option b were used to determine the previous answer.

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