23 Jul IN A ECOSYSTEM WHAT DOES A PRODUCER PRODUCE THAT FLOWS THROUGH THE ECOSYSTEM?
car Show more QUESTION 11 In a ecosystem what does a producer produce that flows through the ecosystem? carbohydrates minerals water carbohydrates and minerals minerals and water 2.5 points QUESTION 12 Some ___ have enzymes to break the bonds of atmospheric nitrogen and use it for the metabolism of proteins and other nitrogen containing molecules. fungi bacteria plants protists fungi bacteria and protists 2.5 points QUESTION 13 The keystone species in a Pacific Northwest Old Growth Forest is the Spotted owl that preys on rodents. are the mice that feed on mushrooms and truffles. are the Douglas fir trees that are dominant species. are the Douglas squirrels that spread the seeds of the Douglas fir. are the piliated woodpeckers that nest in Douglas fir. 2.5 points QUESTION 14 Energy flow in an ecosystem is cyclical. one-way. two-way. reversible under different conditions. a conservation mechanism. 2.5 points QUESTION 15 At the bottom or base of a pyramid of energy are the primary consumers. primary producers. secondary consumers. secondary producers. tertiary consumers. 2.5 points QUESTION 16 A relationship which benefits flow both ways between the interacting species is a neutral relationship. commensalism. competition. mutualism. parasitism. 2.5 points QUESTION 17 Phorid flies lay their eggs inside the bodies of various insects and spiders. When the larvae hatch they consume the body of the host from the inside out. The phorid fly is an example of a brood parasite. a parasitoid. a commensalist. a competitive excluder. more than one of these. 2.5 points QUESTION 18 A one-way relationship in which one species benefits and directly hurts the other is called commensalism. competition. parasitism. predation. more than one of these. 2.5 points QUESTION 19 The nitrogen cycle on land begins with nitrification. denitrification. decomposition. uptake by producers. nitrogen fixation. 2.5 points QUESTION 20 Populations are held in check by resource partition. predation. social parasitism. competition. all of these. Show less
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