For items 11 to 14: A study was conducted to investigate the interactions between California sheephead, macroalgae, and urchins. The output path diagram of the study is given below: 11. Which of the following is(are) TRUE about the experiment? 1. Urchin density is an exogenous variable. II. There are a total of four (4) structural equations that can be modelled. O A. I only O B. II only O C. Both I and II OD. Neither I nor II kelp stipe density 0-0 sheephead biomass urchin density crustose coralline algae fleshy algal cover

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For items 11 to 14: A study was conducted to investigate the interactions between California sheephead, macroalgae, and urchins. The output path diagram of the
study is given below:
11. Which of the following is(are) TRUE about the experiment?
1. Urchin density is an exogenous variable.
II. There are a total of four (4) structural equations that can be modelled.
O A. I only
O B. II only
O C. Both I and II
O D. Neither I nor II
kelp stipe
density
0-0
sheephead
biomass
urchin density
custose
coralline algae
fleshy algal
cover
Transcribed Image Text:For items 11 to 14: A study was conducted to investigate the interactions between California sheephead, macroalgae, and urchins. The output path diagram of the study is given below: 11. Which of the following is(are) TRUE about the experiment? 1. Urchin density is an exogenous variable. II. There are a total of four (4) structural equations that can be modelled. O A. I only O B. II only O C. Both I and II O D. Neither I nor II kelp stipe density 0-0 sheephead biomass urchin density custose coralline algae fleshy algal cover
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