Ability to grow in shade may help pines found in the dry forests of Arizona resi

Question

Ability to grow in shade may help pines found in the dry forests of Arizona resist drought. How well do these pines grow in shade? Investigators planted pine seedlings in a greenhouse in either full light, light reduced to 25% of normal by shade cloth, or light reduced to 5% of normal. At the end of the study, they dried the young trees and weighed them.

(a) What type of study is this?

Match each of the following terms to the appropriate description.

-abcd Pine seedlings a. Treatments -abcd Amount of light b. Explanatory variable -abcd Weight c. Response variable -abcd Full light, light reduced to 25% of normal, light reduced to 5% of normal d. Individuals

Explanation / Answer

Solution:-

a) Experiment: completely randomized design.

=> Match each of the following terms to the appropriate description.

- d Pine seedlings a. Treatments - b Amount of light b. Explanatory variable - c Weight c. Response variable - a Full light, light reduced to 25% of normal, light reduced to 5% of normal d. Individuals

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