Answer: Yes, Endocytosis and exocytosis can occur in the same cell. It is how a cell transport and export material in and out.
Explanation: Hope this helps :) and amazing question btw
Jack. A signpost is a non-living thing and non living things do not grow. Sam is an adult and he has stopped growing already. Jack is a child and will continue growing the next few years.
Lactate is produced by fermentation
If I had to guess it would be C metabolism