#Question id: 46
#Unit 1. Molecules and their Interaction Relevant to Biology
The three-dimensional structure of a protein is determined primarily by:
#Question id: 7271
#Unit 5. Developmental Biology
In drosophila, Head formation required higher Bicoid concentrations than thorax formation, because
#Question id: 19332
#Unit 12. Applied Biology
#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: 10333
#Unit 6. System Physiology – Plant
Four elements, oxygen, carbon, and hydrogen and nitrogen are the major components of most organic compounds, which of the following elements are more abundant in plants ?