There is exactly <u><em>two</em></u> membranes that surround the chloroplast.
This answer would be all of the above
You are amazing smile today! make sure you drink water and eat!!
The answer your looking for is adaptation. I would know, for I just recently finished a chapter on it.
Answer:
High Temperature, X-rays, Radiation, Some Chemicals
Explanation:
In general, mutations happen due to some error in the DNA duplication process, however, there are certain factors in the environment that can increase the incidence rate of these genetic errors. Excessive exposure to x-rays, substances present in smoke, ultraviolet light, excessive temperature, nitrous acid and some dyes present in food, for example, can favor the appearance of mutations. In general, we can say that mutations can be caused by high temperature, X-rays, radiation, some chemicals.
