Which statement is true?I. Parasitic root-knot nematodes that thrive in environments with low fungus concentration levels are an example of indicator species.II. Squirrels that highly depend on wide-area-occupying tigers can be classified as umbrella species. a.I is true, and II is falseb.I is false, and II is truec.Both I and II are trued.Both I and II are false
Question
Which statement is true?I. Parasitic root-knot nematodes that thrive in environments with low fungus concentration levels are an example of indicator species.II. Squirrels that highly depend on wide-area-occupying tigers can be classified as umbrella species. a.I is true, and II is falseb.I is false, and II is truec.Both I and II are trued.Both I and II are false
Solution 1
To determine which statement is true, let's analyze each statement step by step:
Statement I:
"Parasitic root-knot nematodes that thrive in environments with low fungus concentration levels are an example of indicator species."
- Indicator Species: These are species whose presence, absence, or abundance reflects a specific environmental condition, such as pollution levels, climate change, or the health of an ecosystem.
- Parasitic Root-Knot Nematodes: These are a type of nematode that infects plant roots, causing the formation of galls or "knots."
- Low Fungus Concentration Levels: This suggests a specific environmental condition.
Given that parasitic root-knot nematodes thrive in environments with low fungus concentration levels, they can indeed indicate the health or condition of the soil environment. Therefore, they can be considered indicator species.
Statement II:
"Squirrels that highly depend on wide-area-occupying tigers can be classified as umbrella species."
- Umbrella Species: These are species whose conservation also protects a large number of other species because they require large habitats or have specific habitat needs that overlap with many other species.
- Squirrels: Typically, squirrels do not depend on tigers for their survival. They usually have different habitat and dietary requirements.
- Wide-Area-Occupying Tigers: Tigers are often considered umbrella species because their conservation helps protect large areas of habitat that many other species also use.
Since squirrels do not highly depend on tigers, they cannot be classified as umbrella species.
Conclusion:
- Statement I is true because parasitic root-knot nematodes can be considered indicator species.
- Statement II is false because squirrels do not depend on tigers and thus cannot be classified as umbrella species.
Therefore, the correct answer is: a. I is true, and II is false
Solution 2
Sure, let's analyze each statement step by step to determine which one is true.
Statement I:
"Parasitic root-knot nematodes that thrive in environments with low fungus concentration levels are an example of indicator species."
- Indicator Species: These are species whose presence, absence, or abundance reflects a specific environmental condition, such as pollution levels, climate change, or ecosystem health.
- Parasitic Root-Knot Nematodes: These are pests that affect plant roots, causing damage and reducing crop yields. They thrive in certain environmental conditions.
To determine if they are indicator species, we need to see if their presence or abundance indicates a specific environmental condition. If they thrive in environments with low fungus concentration levels, their presence could indicate such conditions. Therefore, this statement could be true.
Statement II:
"Squirrels that highly depend on wide-area-occupying tigers can be classified as umbrella species."
- Umbrella Species: These are species whose conservation also protects a large number of other species because they require large habitats or have specific habitat needs that overlap with many other species.
- Squirrels and Tigers: Squirrels do not typically depend on tigers for their survival. Tigers are apex predators and have large territories, but their presence does not directly benefit squirrels in a way that would classify squirrels as umbrella species.
Given this, the statement about squirrels being classified as umbrella species is false.
Conclusion:
- Statement I: True, as parasitic root-knot nematodes can be considered indicator species if their presence indicates low fungus concentration levels.
- Statement II: False, as squirrels do not fit the definition of umbrella species.
Therefore, the correct answer is:
a. I is true, and II is false
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