Answer:
1. Ecological succession is the process of change in the species of an ecological community over time.
2. this is to change in external factors, complex like plants become the dominant.
3. the number of individuals organism per unit area can influence population size.
Explanation:
Andrew Jackson was a man who work very hard at his adulthood and became rich due to his hard efforts
he was inherited with wealth ,he was very humble person and was born poor and was a common man
so correct option is D hope it helps<span />
<span>In order to expunge bias, an individual must identify the cause or root of the bias. By identifying and exploring the foundation of the bias, it is then possible to address questions that may arise from pinpointing the cause of the bias. In general, the best method to overcome bias is to rationally explore the bias.</span>
