Single Answer MCQ
Q-00019551
Which of the following statements about excretion is true?
1
All waste products are toxic.
2
Excretion only involves solids.
3
Excretion occurs through the lungs in all organisms.
4
Excretion is essential to remove harmful substances.
Answer and Solution
Answer
D. Excretion is essential to remove harmful substances.
Solution:
Excretion is crucial for removing harmful metabolic wastes that can be toxic if allowed to accumulate, making it essential for maintaining health and homeostasis.
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