The length of the cell cycle is highly variable even within the cells of an…

Cytokinesis is the second part of the mitotic phase during which cell division is completed…

The cell cycle is an ordered series of events involving cell growth and cell division…

Figure 6.1 A sea urchin begins life as a single cell that (a) divides to…

The shared evolutionary history of all photosynthetic organisms is conspicuous, as the basic process has…

After the energy from the sun is converted and packaged into ATP and NADPH, the…

How can light be used to make food? It is easy to think of light…

Figure 5.1 This sage thrasher’s diet, like that of almost all organisms, depends on photosynthesis.…

Certain prokaryotes, including some species of bacteria and Archaea, use anaerobic respiration. For example, the…

In aerobic respiration, the final electron acceptor is an oxygen molecule, O2. If aerobic respiration…