Biology
Grade-7
Easy
Question
Choose the correct statement with respect to the community structure.
- Communities can be small, with only a few species populations in a limited area, or large, with many species’ populations, spread out across a large area.
- The richness of a species in a community determines its structure.
- The number of species present and their relative proportions is referred to as community structure.
- All of these
Hint:
All of these
The correct answer is: All of these
Community structure refers to the species and their relative abundances in a community.
Communities can be small, with only a few species populations in a limited area or large with many species populations, spread out across a large area.
The richness of a species in a community determines its structure.
The number of species present and their relative proportions is referred to as community structure.
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Match the following.
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The process of community development is known as ____________.
The process of community development is known as ____________.
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Which of the following species play particularly important roles in determining their communities' structure?
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A community's structure can be described by its species richness and species diversity.
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Community structure is influenced by many factors, including ___________.
Community structure is influenced by many factors, including ___________.
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Each organisms in a community can be classified into one of several ______ levels based on how it obtains nutrients.
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___________ communities, also known as merocenoses, are tiny ecological units that are not self-sustaining and depend on interactions with bigger communities to survive.
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Pick the odd one out.
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Match the following.
1.  |
a. Community refers to a group of species that interact and coexist in a certain area. |
2.  |
b. Community with deciduous trees, coniferous trees, and agricultural products and animals like monarchs and chipmunks. |
3.  |
c. Minor communities, also known as merocenoses, are tiny ecological units that are not self-sustaining and depend on interactions with bigger communities to survive. |
Match the following.
| 1. |
a. Community refers to a group of species that interact and coexist in a certain area. |
| 2. |
b. Community with deciduous trees, coniferous trees, and agricultural products and animals like monarchs and chipmunks. |
| 3. |
c. Minor communities, also known as merocenoses, are tiny ecological units that are not self-sustaining and depend on interactions with bigger communities to survive. |
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A group of organisms living within a piece of deadwood on the forest floor is an example of a __________ community.
A group of organisms living within a piece of deadwood on the forest floor is an example of a __________ community.
BiologyGrade-7
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In the container, the contaminants are left behind. After that, the steam is transferred via a condenser, where it cools and returns to liquid water in the process of distillation.
- Condenser is used to pass steam, where it cools and returns to liquid water in the container.
- The process used is called as distillation.
In the container, the contaminants are left behind. After that, the steam is transferred via a condenser, where it cools and returns to liquid water in the process of distillation.
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- Condenser is used to pass steam, where it cools and returns to liquid water in the container.
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Electric water filter consists of ________. (understand)
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Electric water filter consists of ________. (understand)
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Pick the odd one out. (analyze)
- All the other options are methods to separate water.
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Pick the odd one out. (analyze)
BiologyGrade-7
- All the other options are methods to separate water.
- Only chlorination is the method to purify water.
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- First of all large wastes are removed from water in sewage water treatment.
- Then it is passed to flocculation tanks from water reservoirs to remove impurities in the form of lumps of particles.
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