ANSWE ALL PLS 7) Termites can be found living in dead trees partially buried under soil and stones. Within the tree trunks, the
termites feed on the wood fiber, leaving behind humid passageways. Protozoans living within the digestive
tracts of the termites digest the wood fiber.
What are the biotic factors in this habitat?

A) Tree trunk, stones, and protozoans
B) Soil and humidity
C) Termites and protozoans
D) Humidity, soil, and stones

8) An oak tree provides food and shelter to organisms. It makes its own food through photosynthesis. This
description of the oak tree in its environment represents the oak tree's

A) community
B) habitat.
C) population
D) niche.

9) Which will most probably occur when two organisms in the same habitat occupy the same niche?

A) Mutation
B) Competition
C) Symbiosis
D) Geographic isolation

10) The competitive exclusion principle states that two different species with similar environmental
requirements cannot coexist for long in the same habitat. Which one of the following best explains why this
is true?

A) If two species do not compete for resources, both species become unable to develop survival instincts.
B) Few species can live in the same habitat for long without passing on fatal diseases that eliminate the
populations.
C) The two species will interbreed and create mutated offspring better able to survive than their parents.
D) The species that is better adapted to obtain its resources will limit the resources available to the other
species.