Interspecific Competition

Q.

What is meant by symbiotic nutrition?

Q. MacArthur is related with:

1. Competitive release
2. None of the above
3. Competitive exclusion
4. Resource partitioning

Q.

The species diversity of plants (22 per cent) is much less than that of animals (72 per cent). What could be the explanations to how animals achieved greater diversification?

Q. If feeding efficiency of one species is reduced due to another species in the presence of abundant resources, it is called

1. resource partitioning
2. competitive exclusion
3. interference competition
4. competitive release

Q. If two species compete for the same resource, they could avoid competition by

1. Different foraging pattern
2. Behavioural differences in their foraging activities
3. All of the above
4. Choosing different times for feeding

Q. MacArthur is related with:

1. Competitive exclusion
2. Resource partitioning
3. Competitive release
4. None of the above

Q. Which of the following statements regarding the ‘Competitive Exclusion Principle’ is correct?

1. It was proposed by MacArthur
2. Two closely related species competing for the same resources can co-exist indefinitely even if resources are limited
3. Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated if resources are limited
4. It holds good even when the resources are unlimited
   

Q. Amensalism can be represented as :

1. Species A (+) ; Species B (0)
2. Species A (-) ; Species B (0)
3. Species A (+) ; Species B (+)
4. Species A (-) ; Species B (-)

Q. According to Darwin, the prominent reason for organic evolution is

1. environmental competition
2. reduced feeding efficiency
3. intraspecific competition
4. interspecific competition

Q. The principle of competitive exclusion was stated by

1. Verhulst and Pearl
2. C. Darwin
3. G. F. Gause
4. MacArthur

Q. When species A and species B compete with each other for territory and food, it is categorized as ___.

1. Intragenic Interaction
2. Intergenic Interaction
3. Intraspecific Interaction
4. Interspecific Interaction

Q. A high density of elephant population in an area can result in :

1. Predation on one another
2. Mutualism
3. Intraspecific competition
4. Interspecific competition

Q. According to Darwin, the prominent reason for organic evolution is

1. environmental competition
2. reduced feeding efficiency
3. intraspecific competition
4. interspecific competition

Q. Assertion :Predators maintain species diversity. Reason: Predators reduce the intensity of competition among competing prey species.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. When species A and species B compete with each other for territory and food, it is categorized as ___.

1. Interspecific Interaction
2. Intragenic Interaction
3. Intergenic Interaction
4. Intraspecific Interaction

Q. A high density of elephant population in an area can result in :-

1. Mutualism
2. Intra specific competition
3. Inter specific competition
4. Predation on one another

Q.

The species diversity of plants (22 per cent) is much less than that of animals (72 per cent). What could be the explanations to how animals achieved greater diversification?

Q. The principle of competitive exclusion was stated by

1. Verhulst and Pearl
2. C. Darwin
3. G. F. Gause
4. MacArthur

Q.

A high density of elephant population in an area can result in:

1. mutualism

2. Intraspecific competition

3. Interspecific competition

4. Predation on one another

Q. In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause's Principle, one of the species is to be eliminated in due course of time. but both are surviving well in the aquarium. Give possible reasons.

Q. Match column I with column II and identify the correct option.

Column I	Column II
A. Breed only once in their lifetime	1. Rat
B. Breed many times in their lifetime	2. Pacific salmon fish
C. More number of small sized offsprings	3. Elephant
D. Less number of large sized offsprings	4. Oysters

Q. When species A and species B compete with each other for territory and food, it is categorized as ___.

1. Interspecific Interaction
2. Intragenic Interaction
3. Intergenic Interaction
4. Intraspecific Interaction

Q. Organisms compete for various resources in order to survive.
The question given below pertains to the competition among organisms for food resources only.

Organisms in a population _______I_______ or _____II______in case of ______III______.

1. I - may compete with each other, II - with other species, III - limited food availability
2. I - may compete for food with each other, II - with other species, III - unlimited food availability
3. I - never compete with each other, II - with other species, III - limited food availability
4. I - always compete with each other, II - with other species, III - unlimited food availability

Q. Select the option that correctly defines 'competitive release'.

1. The feeding efficiency of one species might be reduced due to the interfering presence of the another species, although the resources are abundant
2. Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated
3. If two species compete for the same resource, they could avoid competition by choosing different times for feeding
4. A species restricted to a small area due to the presence of a competitively superior species is found to expand its distributional range when the competing species is experimentally removed

Q. An area has a high population density of rabbits. This high density of rabbit population can lead to which type of population interaction from the options given below.

1. Mutualism
2. Interspecific competition
3. Predation
4. Intraspecific competition

Q. An interaction between two individuals where one is benefitted while the other is neither benefitted nor harmed is called as

1. Predation
2. Symbiosis
3. Scavenging
4. Commensalism
5. Parasitism

Q. Refer to the table below containing data obtained for a rabbit population over a period of several years.

Year	Number of rabbits
1	4
2	17
3	62
4	245

Ultimately, the amount of nutrients and other resources would become limiting. What would happen to the rabbit population at that time?

1. It would reach the carrying capacity of the environment.
2. It would engage in intraspecific competition.
3. It would continue to grow indefinitely.
4. Both A and B.
   
5. Both A and C.

Q. Yellow jackets number among the 900 or so species of the world's social wasps, wasps living in a highly cooperative and organized society where they consist almost entirely of females- the queen and her sterile female workers.

1. Wasps living in a highly cooperative and organized society where they consist almost entirely of
2. Wasps that live in a highly cooperative and organized society consisting almost entirely of
3. Which means they live in a highly cooperative and organized society, almost all
4. Living in a society that is highly cooperative, organized, and it consists of almost all
5. Which means that their society is highly cooperative, organized, and it is almost entirely

Q. The relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola. Give a brief explanation.

Q.

In a population interaction, if the stronger partner (fit) survives and the weaker partner perishes, the interaction is

1. symbiosis

2. predation

3. commensalism

4. mutualism