A third species of kangaroo rat is introduced into the habitats of the two species from Question 5. If this third species is biologically similar to the first two, but also eats insects, which of the following will most likely happen?

Both species would share both habitats because their niches would be different and competition would thus be eliminated.

A habitat is an area where an organism/species makes its home, which can be represented by all the resources present in that area. Conversely, a niche is the role of a particular species/organism within an environment. In consequence, a niche refers to the position of the organism/species within its community as a consequence of its adaptations, which is unrelated to the physical area it occupies. In other words, the term habitat indicates how the environment impacts the organism/species while the term niche indicates how the organism/species impacts the environment. Competitive exclusion indicates that two or more species can't have the same niche in a particular habitat and coexist. In this case, both species can coexist because they share habitats but their niches are different (it occurs when species have restricted diets and therefore their niches do not overlap).

Learn more about this topic here:

Everything that you need in a lab is in your lab