Question

what are the first species to start secondary succession called?
climax
pioneer species
meadow

Explanation:

In ecological succession, pioneer species are the first to colonize disturbed areas. Secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem but left the soil intact. Pioneer species play a crucial role in the early stages of secondary succession by preparing the environment for other species. Climax refers to the final stage of succession, and meadow is a type of ecosystem, not the term for the first - arriving species in succession.

Answer:

B. pioneer species