Each spring when the worms reproduce, they have about 500 babies BUT only 100 of these 500 ever become old enough to reproduce. Question: What are the worms using to try to get as many of their offspring to survive? *

If the environmental condition are suitable, the worms reproduce rapidly.

Explanation:

Environmental condition such as temperature, humidity, pH and texture of the soil has a great influence on the population of worms. If these environmental conditions are optimum, the worms reproduce rapidly and increase in population occurs. The population of worm increases because more worms start reproduction and reproduce baby worms. With the passage of time, these baby worms fully matured and start reproduction and increase the population of worms.

The keep themselves away from predation

Explanation:

The worms are mostly kept away from predators to make them survive. Some worms can be nocturnal while some are diurnal the nocturnal worm are inactive during the day keeping them away from predator but diurnal worms moves around during the day and it exposes them to predation they are been lost. The population the are survived to adult are the ones that have selective advantage of not being destroyed or feed on by preys. The Nocturnal are able to survive over a long time

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs