The male reproductive parts of a flower are called
a. petals.
b. stamens.
c. sepals.
d. carpels.

Which entry is in the wrong position in the table?

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.

Spirochetes have a twisting and flexing locomotion due to appendages called