#Question id: 552
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following is true of the binding energy derived from enzyme-substrate interactions?
#Question id: 16147
#Unit 4. Cell Communication and Cell Signaling
#Question id: 1899
#Unit 4. Cell Communication and Cell Signaling
Which of the following statements is NOT TRUE? Rejection of a second (set) skin graft from the same allogeneic donor:
#Question id: 11292
#Unit 10. Ecological Principles
In an pond ecosystem the _____ is always greater than the _____ .
(a) number of primary producers . . . number of secondary consumers
(b) biomass of secondary consumers . . . biomass of primary consumer
(c) assimilation efficiency of primary consumers . . . assimilation efficiency of secondary consumers
(d) biomass of primary producers . . . biomass of primary consumers
#Question id: 11201
#Unit 7. System Physiology – Animal
Why are action potentials usually conducted in one direction?