Please help! Which of the following indices would not reflect information relating to ecosystems?
A. Simpson’s diversity index
B. Shannon’s diversity index
C. Species richness
D. Species evenness
E. Species difference

Explain how organisms could be harmed by high levels of salt from roadways?

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.