In order for multicellular organisms to develop properly and maintain homeostasis, the cells must be able to communicate with each other so that their responses are appropriate and coordinated. Chemical signals released by a cell carry information to cells nearby or far away about how to respond. One example of a chemical signal […]

1. A. In developing the formulas for population growth I made specific assumptions about birth rates and death rates. On the graph below draw the line that relates birth rate to population size if the environment were perfect and thus the population is growing at its biotic potential. Also, draw […]

Biology Discussion Question THE LAST OF THE AMAZON (read pages 13-22) http://www.nxtbook.com/nxtbooks/ngsp/learningreader_green/index.php#/18 Answer the following questions, keep it brief. Tell me what the issue is in the reading, what is being done to help the issue, and what you personally can do to help the issue. Make sure you answer […]

The free energy for the oxidation of glucose to co2 and water is-686 kcal/mole and the free energy for the reduction of NAD+ to NADH is +53 kcal/mole. Why are only two molecules of NADH formed during glycolysis when it appears that as many as twelve NADH could be formed. […]