Arrange the Steps in Correct Order

Following are the important events in a lifecycle of a liver fluke. Put the events in the correct order.

• 1.The cow excretes eggs through the manure
• 2.The eggs develop into cilia larvae
• 3.The liver fluke snail ingests the cilia larvae
• 4.The cilia larvae become tail larvae
• 5.The tail larvae attach themselves to the grass
• 6.Grass with the tail larvae is ingested by the cow