Habitat is defined as the natural environment where an organism lives and finds the resources it needs to survive, such as food, water, shelter, and mates.

Here are some other terms related to living space in science:

* Niche: The specific role an organism plays in its ecosystem, including its food sources, interactions with other species, and preferred living conditions.

* Biotope: A specific area with uniform environmental conditions that support a distinct community of plants and animals.

* Ecosystem: A community of living organisms interacting with each other and their non-living environment.

So, while "living space" is a more casual term, habitat is the more scientifically precise term used to describe the environment where organisms live.