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Questions and Answers
What is the primary waste product expelled through the urethra in mammals?
What is the primary waste product expelled through the urethra in mammals?
- Carbon dioxide
- Salts
- Water vapor
- Urine (correct)
Which organ is primarily responsible for excretion in vertebrates?
Which organ is primarily responsible for excretion in vertebrates?
- Liver
- Lungs (correct)
- Stomach
- Heart
In unicellular organisms, how are waste products discharged?
In unicellular organisms, how are waste products discharged?
- Through the respiratory system
- Through specialized excretory ducts
- Directly through the surface of the cell (correct)
- By diffusion into the surrounding environment
What are the waste products produced during cellular respiration?
What are the waste products produced during cellular respiration?
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What is excreted by green plants?
What is excreted by green plants?
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