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8.
The competitive exclusion principle states that competition usually results in the establishment of cooperation between two species.
A) True
B) False
9.
A long-term relationship in which both participating species benefit is known as parasitism.
A) True
B) False
10.
The process by which species evolve in response to other living members of their ecosystem is called
A) compromise.
B) parasitism.
C) coevolution.
D) ecology.
11.
An organism’s niche includes
A) what it eats.
B) where it eats.
C) when it eats.
D) All of the above
12.
The relationship between plants and the bees that pollinate them is an example of
A) commensalism.
B) competition.
C) mutualism.
D) parasitism.
13.
When two species compete, the niche that each species ultimately occupies is its
A) competitive niche.
B) realized niche.
C) fundamental niche.
D) exclusive niche.
14.
Mutualism is a symbiotic relationship in which only one party benefits.
A) True
B) False
15.
The number of trophic levels in an ecological pyramid
A) is limitless.
B) is limited by the amount of energy that is lost at each trophic level.
C) never exceeds four.
D) never exceeds three.

Question 6
The many amazing chemicals produced by plants and animals, that humans have found uses for as medicines, were produced by these organisms as _____.
for no good reason that anyone can find
helpful aids to human health
defenses against competitors or predators
Question 7
When a food supply is subdivided to create two different realized niches, this is an example of _____.
symbiosis
competitive exclusion
a density-independent effect
resource partitioning
8
Competition is _____.
good for both the winner and loser
deterimental to both species involved
bad for the loser but good for the winner
Question 9
Which relationship is sometimes considered a special type of predation where the predator typically does not kill its victim?
competition
commensalism
parasitism
mutualism
Question 10
When an organism kills another organism in order to gain a food supply, the organism doing the eating is called a _____.
host
predator
parasite
prey
Question 11
When predators are removed from an ecosystem, what is the typical result?
biodiversity in prey species increases
there is no significant change
biodiversity in prey species decreases
Question 12
A predictable and orderly change in an ecosystem, where one community is replaced by another that is more complex, is called _____.
succession
commensalism
competitive exclusion
endosymbiosis
Question 13
Some ants are “aphid ranchers”. The ants feed on the aphid’s sugary excretions, and the ants will carry the aphids to new plants so that the aphids always have a food supply. This is an example of a _____.
commensalism
predation
parasitism
mutualism

And these other questions too please:
What is a habitat and give an example.
Symbiosis: Define
Mutualism
Give an example:
Commensalism
Give an example:
Parasitism
Give an example:
thanks for the help. Its for biology homework but i left my book at school and its due tomorrow. Help would be greatly appreciated.

And these other questions too please:
What is a habitat and give an example.
Symbiosis: Define
Mutualism
Give an example:
Commensalism
Give an example:
Parasitism
Give an example:
thanks for the help. Its for biology homework but i left my book at school and its due tomorrow. Help would be greatly appreciated.

1.Commensalism involves…
A.Abiotic factors B.Biotic factors
2.Competition
A.Abiotic factors B.Biotic factors
3.Habitat
A.Abiotic factors B.Biotic factors
4.Mutualism
A.Abiotic factors B.Biotic factors
5.Niche
A.Abiotic factors B.Biotic factors
6.Predation
A.Abiotic factors B.Biotic factors