You can send the copies of all of the passport pages; however, it is not a necessity.
The required copies are (as listed on cic website):
3. Biographical page of passport(s)/travel document(s)
The biographical page means the page that has your name, photo, passport/travel document no., issue date and expiration date.
Provide photocopies of the biographical pages of all passports and/or travel documents (valid and cancelled) for the relevant four (4) year period immediately preceding the date of your application,
Also, provide photocopies of any renewal pages of the passport(s)/travel document(s).