5
Question
[3]
a) Name the interaction represented by the table.
b) Give examples for each.
c) What does Gause’s principle state?
a) Name the interaction represented by the table.
b) Give examples for each.
c) What does Gause’s principle state?
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Solution
a) Species A Species B [0.5]
+ +
This type of intercation is known as Mutualism.
Species A Species B [0.5]
- -
This type of intercation is known as Competition.
b) Mutualism : Lichens [0.5]
Competition : In a forested area trees, shrubs herbs and vines compete with one another for sunlight, nutrients, waters, pollinators and dispersal agents. [0.5]
c) Gause's principle states that two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated eventually. This may be true if the resources are limiting, but otherwise not. [1]
+ +
This type of intercation is known as Mutualism.
Species A Species B [0.5]
- -
This type of intercation is known as Competition.
b) Mutualism : Lichens [0.5]
Competition : In a forested area trees, shrubs herbs and vines compete with one another for sunlight, nutrients, waters, pollinators and dispersal agents. [0.5]
c) Gause's principle states that two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated eventually. This may be true if the resources are limiting, but otherwise not. [1]
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