#Question id: 13141
#Unit 10. Ecological Principles
Five similar populations of a herbaceous annual plant are monitored for three years; then, the numbers of individuals in populations I-IV are increased by an experimenter. Subsequent changes in the sizes of all the populations are shown in the graph below.
If size distributions of individuals do not vary among these populations, which of the following relationships best illustrates the occurrence of population regulation?
#Question id: 31178
#Unit 4. Cell Communication and Cell Signaling
#Question id: 455
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following is correct for a step in a reaction pathway to serve as a control point
A) irreversible B) endergonic C) far from equilibrium
#Question id: 11764
#Unit 10. Ecological Principles
The mathematical model for geometric growth of a population is identical to the model for exponential growth, except that __________ in the geometric model.
#Question id: 3374
#Unit 11. Evolution and Behavior
Consider an autosomal locus with two alleles A1 and A2 at frequencies of 0.6 and 0.4 respectively. Each generation, A1 mutates to A2 at a rate of μ = 1 x 10-2 while A2 mutates to A1 at a rate of υ = 1 x 10-1) Assume that the population is infinitely large and no other evolutionary force is acting. The overall change in allelic frequency will be