#Question id: 8718
#Unit 9. Diversity of Life Forms
Which of the following would, if it had acted upon a gene, prevent this gene from acting as a reliable molecular clock?
#Question id: 2071
#Unit 2. Cellular Organization
Diffusion of ions across membranes through specific ion channels is driven by:
#Question id: 412
#Unit 1. Molecules and their Interaction Relevant to Biology
All of the following contribute to the large, negative, free-energy change upon hydrolysis of “high-energy” compounds except:
#Question id: 4967
#Unit 11. Evolution and Behavior
Recent evidence indicates that the first major diversification of multicellular eukaryotes may have coincided in time with the
#Question id: 4969
#Unit 11. Evolution and Behavior
The snowball Earth hypothesis provides a possible explanation for the