Match each of the materials in the research process above with the concept that best describes its place in the research process. Scenario: A research team measures the width of yearly growth rings on trees in a forest. They also note historical rainfall and temperature information for the last 50 years. They compare the rainfall and temperature information with the growth ring width, and note that growth rings are similar for all trees, except that pine trees rings are much smaller than other trees rings starting about 30 years ago. They hypothesize that a particular pine beetle arrived in the forest 30 years ago. Group of answer choices
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- Materials: yearly growth rings on trees, historical rainfall and temperature information, comparison of rainfall/temperature with growth ring width, observation of differences in pine tree rings, hypothesis about the arrival of a pine beetle. Show more…
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Part A: Research a Forest Use credible resources to research the type of forest you chose and address these questions: Where is this forest located? What is the climate of this region? What types of plants and animals live there? Why is deforestation of this region a threat? Is deforestation currently occurring in this region? If so, what is the primary cause? Use Redwood National Forest.
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Identify the following work as either applied research or basic research. a. An engineer determines the strength of a titanium alloy that will be used to construct notebook-computer cases. b. A biochemist runs experiments to determine how oxygen binds to the blood cells of lobsters. c. A biologist determines the number of eagles that nest annually in Kentucky's Land Between the Lakes area over a six-year period.
Identify the experimental units or subjects, the explanatory variables (factors), the treatments, and the response variables. Ability to grow in shade may help pines found in the dry forests of Arizona to 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.
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