Digestive system in the planarias
Explain how are nutrients distributed by digestive system in the planarias?
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Planarias contain single opening digestive system (not complete) with ramifications which transport nutrients to all regions of the body.
What are chemical components of membranes?
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Besides being essential for activation of main gastric digestive enzyme, how does HCl also participate directly in the process of digestion?
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Briefly explain the term Humorous Look at Sex Education?
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