This is happen during anaphase when two chromatids separate and move towards opposite poles,
It falls to minus 387 degrees Fahrenheit <span />
Answer:
pioneer species
Explanation:
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants—those that can survive in such an environment. Over hundreds of years these “pioneer species” convert the rock into soil that can support plants.