Final answer:
Competition is the term used to describe the struggle between two organisms for the same resources within an environment.
Step-by-step explanation:
The term used to describe the struggle between two organisms for the same resources within an environment is Competition. Competition occurs when organisms vie for limited resources such as food, water, territory, or mates. Examples of competition in nature include competition between lions and hyenas for prey or competition between plants for sunlight and nutrients in the soil.
Learn more about Competition in the struggle for resources