Zase Biology Textbook Grade 10-12 Patched Jun 2026

After you swallow, the bolus (ball of food) moves down this tube. Peristalsis – wave-like muscle contractions – pushes the food toward the stomach. This happens even if you are standing on your head!

The textbook strictly follows the Biology High School Syllabus established by the Zambia Curriculum Development Centre (CDC). It integrates theoretical knowledge with practical skills essential for the Examinations Council of Zambia (ECZ) assessments. ZASE BIOLOGY TEXTBOOK GRADE 10-12 | PDF - Slideshare zase biology textbook grade 10-12