Schistosomiasis life cycle

Question 1

Schistosomiasis life cycle 1

Answer 1

Schistosomes reproduce sexually in the human intestine

Question 2

Schistosomiasis life cycle 2

Answer 2

Fertilised eggs pass out via faeces into water, where they develop into larvae

Question 3

Schistosomiasis life cycle 3

Answer 3

The larvae then infect water snails, where asexual reproduction occurs

Question 4

Schistosomiasis life cycle 4

Answer 4

This produces another type of motile larvae, which escape the snail

Question 5

Schistosomiasis life cycle 5

Answer 5

The larvae penetrate the skin of a human, entering the bloodstream