Answer: A fundamental niche is the ideal biotic and abiotic environment a species can inhabit.
Realized niche is the environment that an animal can inhabits after accounting for interaction with other species .
Step-by-step explanation:
A niche is a term use in ecology to describe the position or the role an organism plays in the ecosystem.
A fundament niche is the sets of all factors(abiotic and biotic) in which a species can survive and reproduce.
Realized niche is the particular environments an organism inhabits and have access to the resources as a result of limited competition with other organisms.
Abiotic factor are the non living factor in the ecosystem and they include, light, temperature, humidity, pressure and so on.
Biotic factor are the living part of the ecosystem which include plants and animals.