Herbivore ingests plant material with 1000 k j energy form producer and 300 kJ loss as feces waste; additionally herbivore invests 300 k j energy in respiration. What is production efficiency of that herbivore?

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#Question id: 927

#Unit 1. Molecules and their Interaction Relevant to Biology

In the disease sprue, vitamin B12 (cobalamin) is poorly absorbed in the intestine, resulting in B12 deficiency. If each of the following fatty acids were in the diet, for which one would the process of fatty acid oxidation be most affected in a patient with sprue?

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#Question id: 2638

#Unit 2. Cellular Organization

Which of these systems give the best mode for turning trp operon off?

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#Question id: 18887

#Unit 13. Methods in Biology

Drumstick appearance in the microscopy is the distinguishing characteristics of:

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#Question id: 591

#Unit 1. Molecules and their Interaction Relevant to Biology

The Michaelis constant, Km, is equal to the ________.

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#Question id: 6954

#Unit 5. Developmental Biology

Between fertilization and the first cleavage division, actin filaments pull the cytoplasm of the frog egg toward the point of sperm entry in a process called: