IGCSE O Level Biology Online Tests
Excretion in Biology MCQ (Multiple Choice Questions) PDF Download
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The MCQ: Excretory substances in animals include; "Excretion in Biology" App Download (Free) with answers: Oxygen; Water; Organic foods; Energy; to study online IGCSE GCSE courses. Practice Excretion in Biology Quiz Questions, download Apple eBook (Free Sample) for college entrance exams.
Excretion in Biology MCQs: Questions and Answers PDF Download
Process by which organisms remove metabolic wastes is known as
- digestion
- respiration
- excretion
- nutrition
Excretory substances in animals include
- oxygen
- water
- organic foods
- Energy
For excretion, animals with impermeable skin use
- simple diffusion process
- produce concentration gradient
- special excretory glands
- special excretory organs
Kidneys are responsible for excretion of
- bile pigments
- creatinine
- nitrogenous wastes
- carbon dioxide
Kidneys are responsible for excretion of
- carbon dioxide
- creatinine
- bile pigments
- excess water
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