Unit 4 Quiz Questions And Answers 2022/2023

How are the nutrients contained within dead organisms made available to primary producers? A) decomposition B) grazing C) herbivory D) predation E) respiration - Answer - A Which of the following terms is used to indicate an organism that eats organisms that create organic molecules using energy captured from the sun? A) keystone species B) primary consumer C) dominant species D) primary producer E) decomposer - Answer - B Because energy transfer is not 100% efficient across trophic levels, an average of about ____________% of energy and biomass available at one trophic level is available at the next. - Answer - 10 Dr. Ben Dantzer, a faculty member here at Michigan, studies red squirrels that live in the boreal forest. The boreal forest contains coniferous trees, which produce seeds but not flowers. In his study sites, white spruce is by far the most common tree species, and is eaten by the red squirrels. Which of the following can be used to describe the red squirrels? (Check all that apply) A) heterotroph B) primary consumer C) gymnosperm D) angiosperm E) eukaryote F) herbivore G) dominant species H) primary producer - Answer - A, B, E, F Which of the following groups of organisms can be considered consumers? (Choose all that apply) A) herbivores B) heterotrophs C) autotrophs D) primary producers E) predators - Answer - A, B, E Ostfeld et al. state that the "...focus of community ecology has been on pairwise interactions between