Multiple choice

The ____________ are the first organisms to return to an ecosystem after a disaster.

  1. Tertiary consumers

  2. Limiting population

  3. Climax species

  4. Pioneer species

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pioneer species, such as lichens or mosses, are hardy organisms capable of surviving in harsh, nutrient-poor conditions. They are the first to inhabit an area after a disaster, helping to build soil for later species.