Which lessons do we need to teach?

For those of you who like checklists, I made up a spreadsheet that has the chapter-by-chapter break down of the biology text. Some lessons cover multiple expectations. My spreadsheet has how many expectations each lesson meets. If you'd like a copy of the spreadsheet, instead of this form, e-mail me and I will forward it to you.
In order to teach to all of the content expectations, these are the lessons that need to be taught.
Essential & Core (Chapter, Lesson)
Ch 2 L6
Ch 3 ALL lessons
Ch 4 L2 Ch 4 L3
Ch 5 L1 Ch 5 L2 Ch 5 L3 Ch 5 L4 Ch 5 L5 Ch 5 L6 Investigation 5
Ch 6 L2 Ch 6 L3 Ch 6 L4
Ch 7 L1 Ch 7 L2 Investigation 7 Ch 7 L3
Ch 8 L1 Ch 8, L2 Biology in the World
Ch 9 L1 Ch 9 L2 Ch 9 L3 Ch 9 L5 Biology in Your Life/Biology in the World Ch 9 Summary
Ch 10 ALL lessons, investigations, readings, etc.
Ch 11 L1 Ch 11 L2 Ch 11 L3 Ch 11 L4 Ch 11 L5
Ch 12 ALL lessons and Investigation 12
Ch 13 L2 Investigation 13 Ch 13 L4 Ch 13 L5 Biology in Your Life
Ch 13 L6 Biology in the World
Ch 14 ALL lessons
Ch 15 ALL lessons
Ch 17 ALL lessons and Discovery Investigation 17
Ch 18 L1 Ch 18 L2
Ch 19 L1 Ch 19 L2
Periodic Table

Prerequisites (May be able to skip, if students had biology in 8th grade)
Ch 1 L1 Investigation 1
Ch 2 L2 Ch 2 L5 Biology in the World
Ch 4 L4
Ch 5 L7
Ch 6 L1
Discovery Investigation 7
Investigation 12


Recommended/Optional
Ch 11 L6