I'm not entirely sure and this response is late but I'm pretty sure it's when the central vacuoles lose their water and can no longer support the cell. When the vacuole of a cell is full it pushes outward against the cell wall. When it has nothing in it, you can assume that because the vacuole is so big and is such a big component of this that this would be the answer.
They do not have a tail and they have a webbed type of feet that helps them leap, they have smooth skin as well.
I don’t understand the question is there more context?
Answer:
Going by the definition, pioneer species are hardy species which establish themselves in a disrupted ecosystem and trigger the process of ecological succession. These include species like algae, lichens, and mosses, which grow in poor, nutrient-deficient soil, and put up with extreme conditions with immense ease. Most pioneer plants are annuals, i.e., species with a life-cycle of a year, which eventually give way to the emergence of perennials.
Explanation:
hope this helps you if it does please mark brainiest
