Ash can be harmful to an environment. It mostly depends on how much ash there is though. If a volcano erupted such as Mt. St. Helen's then yes that can harm an environment. Ash can cover the sky and block out the sun for days before disappearing and that will affect the life of plants
Distantly related organisms may be similar if they live in Similar environments
In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.
Oral ingestion or swallowing is the
administration method that takes the longest time for the drug to reach the
brain. When using this method, the drug is swallowed through the mouth, moves to
the stomach and then into the bloodstream before it can be transported to the
brain. This means that it takes longer for a swallowed drug to start functioning
than it does with other methods of administration such as injecting.
