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Questions and Answers
What is the function of a contractile vacuole in fresh water protozoa?
What is the function of a contractile vacuole in fresh water protozoa?
- To absorb waste from blood capillaries
- To excrete carbon dioxide and ammonia
- To collect and expand water (correct)
- To propel fluid into tubules
What is the function of flame cells in flatworms?
What is the function of flame cells in flatworms?
- To propel fluid into the tubules (correct)
- To discharge waste through a narrow tube
- To absorb waste from surrounding cells
- To end in branched tubules
What is the function of nephridia in earthworms?
What is the function of nephridia in earthworms?
- To end in a coiled tube
- To discharge waste through the excretory pore (correct)
- To absorb waste from blood capillaries
- To reabsorb salt and other useful substances
