Plant populations change over time by growing in size and diversity. They generally are the first part of an ecosystem after lichens (the pioneer species) and cause an ecosystem to flourish and allow for animals to move in. I don't know if this is the answer you were looking for but it should give you somewhat of a base.
Transformed or changed from one form to another.
The Dred Scott decision<span> served as an eye-opener to Northerners who ... to regulate</span>slavery<span> in </span>new territories<span>, these once-skeptics reasoned, ... to the reality instead, that the </span>Supreme Court has made<span> Illinois a </span>slave<span> State. ... </span>did<span> not stop </span>slavery<span> now, they might never again </span>have<span> the chance. </span>
Answer: It was a year of triumphs and tragedies. While America reached new heights by introducing the first 747 and orbiting the moon, all was not well down on earth. The United States lost a Navy intelligence ship and two proponents of peace - the rev. And Martin Luther king Jr. hoped this helped