#Question id: 10824
#Unit 10. Ecological Principles
Interspecific competition has been demonstrated experimentally in
#Question id: 10878
#Unit 7. System Physiology – Animal
The resistance of the pulmonary tree is so low that a 1 cm of water pressure gradient is sufficient to cause normal air flow during resting conditions. Which of the following often has a substantial resistance during pulmonary disease states that can limit alveolar ventilation?
#Question id: 10881
#Unit 10. Ecological Principles
In deep water, which of the following abiotic factors would most limit primary productivity?
#Question id: 10882
#Unit 10. Ecological Principles
The difference between net and gross primary productivity would likely be greatest for
#Question id: 10884
#Unit 10. Ecological Principles
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?
#Question id: 10886
#Unit 10. Ecological Principles
Much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because