What does the phrase "responses to environmental conditions of the worms are analogous to responses of humans" mean?

both species have similar response pathways, but they have a different origin

Explanation:

In this case, analogous responses represent similar but independent adaptive traits to the same environmental conditions. Worms and humans share a common ancestor approximately 550 million years ago, which is a lot of time for evolution to occur. In consequence, these responses that evolved as adaptive analogous traits are due to convergent evolution instead of inheritance. On the other hand, there are many adaptive traits that are the result of shared ancestry, which are called homologous (instead of analogous) traits.

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"