Final answer:
An organism's niche includes its role in the environment and its interactions with other organisms. A food source and interspecific competition are part of an organism's niche.
Step-by-step explanation:
Food source is part of an organism's niche. An organism's niche refers to its role or position within its environment. It includes all the resources an organism needs to survive and reproduce, such as its habitat, the interactions it has with other organisms, and the specific food sources it relies on.
For example, a squirrel's niche may include living in a forest habitat, interacting with other animals in its community, and depending on nuts and seeds as its primary food source.
Interspecific competition is also part of an organism's niche. It refers to the competition between different species for resources in the same habitat. It can influence the distribution and abundance of species within an ecosystem.
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