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Advantages of written communication: Easy to preserve: The documents of written communication are easy to preserve. Oral and non-verbal communication cannot be preserved. If it is needed, important information can be collected from the preserved documents.
A is the ans for this question
A complex chemistry is most related to maintaining a stable internal environment.
It will take 15 years for Della to be in the same risk of
non-smoking persons in risk of cardiovascular disease. As you quit smoking, the
lungs will start to purify itself, but it will take some time. On the other
hand, it cannot be assured that the lungs may be totally restored, more or less
it would just be clean over a period of time.
Answer:
Heredity | Khan Academy
Reading a pedigree · Determine whether the trait is dominant or recessive. If the trait is dominant, one of the parents must have the trait.
