DI 43 the life cycle of a silkworm with five stages

DI 43 the life cycle of a silkworm with five stages

2017-12-26    00'48''

主播: 海外东方学院

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介绍:
This picture indicates the life cycle of a silkworm with five stages. Approximately ten days after coming out of the egg, it becomes a silkworm larva feeding on mulberry leaf. Then it takes four to six weeks for the larva to get silk thread surrounding itself with a part of its tail outside. At the following stage which takes around three to eight days it eventually become a cocoon with silk thread covering all around. At the end, it will come into a moth after 16 days or so.