In pines, the female gametophyte contains , each of which contains a(n) . In pines, the female gametophyte contains , each of which contains a(n) . aronia ... egg antheridia ... sperm cell microsporangia ... egg cell antheridia ... egg aronia ... sperm cell

What causes darkening of the skin as melanin production increases

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.

Which statements best describe monsoons? check all that apply. they force cool, moist air from oceans to rise. they are winds that blow in the opposite direction of a normal wind. they bring rain in the summer and drought in the winter they increase rainfall in south asia, africa, and australia. they influence precipitation as wind moves near a mountain.