B. 다 it can be found where and the name of the specie. pls help need it now

The annelids /ˈænəlɪdz/ (Annelida /əˈnɛlɪdə/, from Latin anellus, "little ring"[2][a]), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments.

Explanation:

is that "da" in Korean???

다 =da

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.