This type of succession involves an environment with no soil and pioneer species. Secondary Primary

## Step 1<br />The problem is asking us to identify the type of ecological succession that soil and pioneer species. <br /><br />## Step 2<br />Ecological succession is the process of change in the species structure of an ecological community over time. It is a series of progressive changes in the species composition of a community over time.<br /><br />## Step 3<br />There are two types of ecological succession: primary and secondary. <br /><br />## Step 4<br />Primary succession occurs in an environment where no soil exists, such as on a new volcanic island or on land left behind by a retreating glacier. In these cases, pioneer species are the first to colonize the barren environment. These species are hardy and able to withstand the harsh conditions of the environment. They help to create soil by breaking down the rock and accumulating organic material.<br /><br />## Step 5<br />Secondary succession, on the other hand, occurs in an environment where a disturbance has destroyed a community but left the soil intact. This could be due to events like fires, floods, or human activities like deforestation.<br /><br />## Step 6<br />Given the description in the problem, the correct answer is primary succession, as it involves an environment with no soil and pioneer species.