Please answer the following question: Fact 1: Some parasites live on the surface of their host. Fact 2: Leeches are external parasites. Given the two facts above, answer the question "Where do leeches live in relation to their hosts?" with the following options: - In their beds - body water - competing for resources - In their shoes - loose soil - In their intestines - important habitats - On their surface
A:
On their surface