WAEC Biology 2025 Theory — Question 1
Question 1 of 21 from the West African Examinations Council (WAEC) Biology 2025 Theory paper, with the correct answer and a full explanation.
Advertisement
1(a) Explain briefly the term excretion.
Model answer
Excretion is the biological process by which living organisms eliminate metabolic waste products and toxic substances that result from cellular activities. These wastes may include carbon dioxide, urea, excess salts, water and other by-products.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.