UPSC Exam > UPSC Questions > Consider the following statements:1. In mutua...
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Consider the following statements:
1. In mutualism both species benefit.
2. In commensalism both species are harmed.
Which of these statements are not correct?
- a)1 Only
- b)2 Only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. In mutualism both species benefit...
Explanation:
Mutualism and commensalism are two different types of relationships that can occur between two species.
Mutualism:
• Mutualism is a type of symbiotic relationship in which both species benefit from the interaction.
• Examples of mutualism include bees and flowers, where bees collect nectar and pollen from flowers for food, while also pollinating the flowers to help them reproduce.
• Another example is the relationship between nitrogen-fixing bacteria and legume plants, where the bacteria provide the plant with usable nitrogen, and the plant provides the bacteria with food.
Commensalism:
• Commensalism is a type of symbiotic relationship in which one species benefits while the other is neither helped nor harmed.
• Examples of commensalism include barnacles attaching themselves to whales or turtles, where the barnacles benefit from the transportation and food sources provided by the host, while the host is not harmed or helped by the barnacles.
• Another example is birds building nests on trees, where the birds benefit from the protection and support provided by the tree, while the tree is not affected by the birds.
Given the above definitions, it is clear that statement 1 is correct, while statement 2 is incorrect. Therefore, the correct answer is option B.
Mutualism and commensalism are two different types of relationships that can occur between two species.
Mutualism:
• Mutualism is a type of symbiotic relationship in which both species benefit from the interaction.
• Examples of mutualism include bees and flowers, where bees collect nectar and pollen from flowers for food, while also pollinating the flowers to help them reproduce.
• Another example is the relationship between nitrogen-fixing bacteria and legume plants, where the bacteria provide the plant with usable nitrogen, and the plant provides the bacteria with food.
Commensalism:
• Commensalism is a type of symbiotic relationship in which one species benefits while the other is neither helped nor harmed.
• Examples of commensalism include barnacles attaching themselves to whales or turtles, where the barnacles benefit from the transportation and food sources provided by the host, while the host is not harmed or helped by the barnacles.
• Another example is birds building nests on trees, where the birds benefit from the protection and support provided by the tree, while the tree is not affected by the birds.
Given the above definitions, it is clear that statement 1 is correct, while statement 2 is incorrect. Therefore, the correct answer is option B.
Community Answer
Consider the following statements:1. In mutualism both species benefit...
- Mutualism is defined as an interaction between individuals of different species that results in positive (beneficial) effects on per capita reproduction and/or survival of the interacting populations.
- Commensalism is a long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed.
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Consider the following statements:1. In mutualism both species benefit.2. In commensalism both species are harmed.Which of these statements are not correct?a)1 Onlyb)2 Onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?
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