Cofty, I don't understand the series, because I am not interested in biology. It's not a linear subject like chemistry.
You haven't written the series at a lamans level. There are too many phrases that are non comprehensive to the laman at my level of high school biology.
I understand that you have put a lot of effort into writing the series and its commendable. But it's not going to hold the attention of a teenager or someone who only has high school biology qualifications.
Thank you for your responses. I appreciate you want to help and be supportive thanks very much
Kate xx