Answer:
A.
Explanation:
Ecological succession is the process of change in the species structure of an ecological community over time. It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance of a new habitat.
I would say medicine that makes the immune system less effective so the likelihood of the immune system attaching the organ are decreased. Or the last option.
Answer;
-The evaporated particles have more speed and higher energy
Explanation;
-There are some molecules of water that have enough kinetic energy to escape from the liquid and became water vapor (gas). This procedure (the conversion from liquid state to gas state) is called evaporation and goes on at all temperatures. Due to evaporation the level of the liquid in the open container decreases.
The rate of evaporation depends only by the temperature of water. At high temperature lots of molecules have enough energy to escape from the liquid. At low temperature fewer molecules have sufficient energy to escape from the liquid.
The kidneys make two main hormones, vitamin D and erythropoietin. Vitamin D is essential for a number of different functions in the body. Most of the vitamin D that is in the blood is inactive and it is modified by the kidney and other tissues to activate it.