The flow of material through a reaction pathway usually depends on ________.

#Question id: 374

#1. Molecules and their Interaction Relevant to Biology

The pH of a sample of blood is 7.4, while gastric juice is pH 1.4.  The blood sample has:

#Question id: 5014

#11. Evolution and Behavior

 Following geological time period and major evolutionary event?

I. Devonian                            A. Gymnosperms dominant

II. Jurassic                               B. Amphibians diversify; first reptiles

III. Carboniferous                  C. Mammals appear

IV. Triassic                           D. Seed plants appear

#Question id: 11554

#7. System Physiology – Animal

What happens in a cell when adenylyl cyclase is activated?

#Question id: 4181

#3. Fundamental Processes

The codon for the amino acid specified by the anticodon at the anticodon arm of tRNA is covalently linked to tRNA at the

#Question id: 11330

#10. Ecological Principles

Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?