#Question id: 3034
#Unit 2. Cellular Organization
Cyanobacteria are
#Question id: 11030
#Unit 7. System Physiology – Animal
While jogging, a person has a stroke volume of 130 ml/beat and a heart rate of 120 beats per minute. If their resting stroke volume was 70 ml/beat and resting heart rate was 60 beats per minute, how did this person's cardiac output change?
#Question id: 2636
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following events occur when E. coli is starved for tryptophan?
I. The ribosome translates leader peptide completely
II. Transcription reads through attenuator into trp EDCBA
III. Tryptophanyl tRNA is not formed
IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site
#Question id: 10740
#Unit 10. Ecological Principles
Change in community structure through time is termed
#Question id: 13134
#Unit 10. Ecological Principles
Which of the graphs below represents the relationship between population size (N) and population growth rate (dN/dt) for a population showing exponential growth?