Answer:
The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
C) change of a caterpillar into an adult butterfly.
The correct answer is letter a, it is because in wet drop method, it does not need to add water after placing the specimen because adding water before placing the specimen in the glass slide is already enough and after placing the specimen, a cover slip is the last step in finishing the method. That is why Johnny is not correct in doing the procedure.
There are environmental differences that can affect the way they look and behave. As identical twins get older they may look more and more different, because they are exposed to more diverse environments.