Scientists believe true commensalism may not exist because . A - parasites are most likely helping their hosts in subtle ways
B - the second organism is probably helped or harmed in unknown ways
C - most organisms prefer to compete and do not like to help each other
D - evolution and adaptation keep the organisms from killing each other

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases