Leeches do not have an elaborate secreti...

Leeches do not have an elaborate secretion of digestive juices and enzymes - Why?

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The digestion in leeches in very slow. So, the blood stored in crop gives nourishment to the leech for several months. So there is not elaborate secretion of digestive juices and enzymes.

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Leeches have __________ .

heart

lungs

true blood vessels

excretory organs

Secretion of gastric juice is controlled by .......... .

Enterogesterone

Cholecystokinin

Gastrin

pepsin

Leeches do not have an elaborate secretion of digestive juices and enzymes - Why?

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Leeches have __________ .

Secretion of gastric juice is controlled by .......... .

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