Developmental Biology Capitalize all your words in a title.

Today, our dean gave a demenstrated lesson in the form of a demonstratation of developmental biology. It is about the dorsalization1. This class just reminded me how acurrate precise and complicated the developmental process is. Now, it is Still a attrcative very intriguing riddle2.

1.  This is a medical/biological term.  It is not in most dictionaries yet.  Therefore you need to include a definition of what it is in the form of a footnote like this or somehow explain it in your essay as well.  Writing technical stuff won't get you much correction.  I myself will skip over it if you have not asked for help directly.

2.  Here's a new word for you to learn: Enigma.