Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..
Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..