1 a species which makes up only a small proportional of the total biomass of a community, yet has a huge impact on the community's organization and survival
2 a common species that has plenty of biomass, yet has a fairly low impact on the community's organization
3 a rare species that has minimal impact on the biomass and on other species in the community
4 a dominant species that constitutes a large proportional of the biomass and which affects many other species.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. - Keystone species is a species, which has a significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species. Removal or decrease in number of keystone species causes serious disruption in structure and function of community. In intertidal regions starfish leads to dominance of mussel population that excludes algae in tropical rain forests figs function as keystone species as they provide fruit to a number of animals like birds, monkeys, bats etc. during this periods of food scarcity.
AIIMS-2008
Ecosystem
260200
The Great Barrier Reef along the east coast of Australia can be categorised as
1 Population
2 Community
3 Ecosystem
4 Biome.
Explanation:
The great Barrier reef (GBR) is a diverse ecosystem extending from more than $2300 \mathrm{~km}$ along Australia's north-east coast. An ecosystem is a whole biotic group in a given area plus its abiotic environment. The great barrier reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately $3,44,400$ square kilometres.
AIIMS-2004
Ecosystem
260201
Amazon Rain Forest is known as $\qquad$
1 Lungs of Forest
2 Lungs of our Planet
3 Lungs of Plants
4 Lungs of Mars
Explanation:
Amazon rain forest is known as the lungs of the planet earth because they are responsible for the production of about $20 \%$ of the earth's oxygen. They remove a large amount of carbon dioxide from the air and give out oxygen by process of photosynthesis. The Amazon rainforests is a forest in tropical region. The tropical Amazonian rainforest in south America has a greatest biodiversity on earth.
AP EAMCET-24.09.2020 Shift-I
Ecosystem
260202
Who proposed that ecosystem is the symbol of structure and function of nature?
1 Tansley
2 Odum
3 Reiter
4 Gardner
Explanation:
British botanist A.G. Tansley first coined the term ecosystem in 1935. The functional unit of the biosphere is known as the ecosystem. An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other.
AP EAMCET-24.09.2020 Shift-I UPCPMT-2002
Ecosystem
260205
Benthic organisms are found in
1 surface of marine water
2 middle of water in sea
3 bottom of sea
4 on ground
Explanation:
Benthos or benthic organisms live on the ocean floor, either on the substrate (epifauna and epiflora) or inside it buried or burrowing in the sediment (infauna). Benthic organisms may be sessile, attached to a firm surface such as rocks and manmade structures or mobile moving freely on or in the bottom sediment.
1 a species which makes up only a small proportional of the total biomass of a community, yet has a huge impact on the community's organization and survival
2 a common species that has plenty of biomass, yet has a fairly low impact on the community's organization
3 a rare species that has minimal impact on the biomass and on other species in the community
4 a dominant species that constitutes a large proportional of the biomass and which affects many other species.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. - Keystone species is a species, which has a significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species. Removal or decrease in number of keystone species causes serious disruption in structure and function of community. In intertidal regions starfish leads to dominance of mussel population that excludes algae in tropical rain forests figs function as keystone species as they provide fruit to a number of animals like birds, monkeys, bats etc. during this periods of food scarcity.
AIIMS-2008
Ecosystem
260200
The Great Barrier Reef along the east coast of Australia can be categorised as
1 Population
2 Community
3 Ecosystem
4 Biome.
Explanation:
The great Barrier reef (GBR) is a diverse ecosystem extending from more than $2300 \mathrm{~km}$ along Australia's north-east coast. An ecosystem is a whole biotic group in a given area plus its abiotic environment. The great barrier reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately $3,44,400$ square kilometres.
AIIMS-2004
Ecosystem
260201
Amazon Rain Forest is known as $\qquad$
1 Lungs of Forest
2 Lungs of our Planet
3 Lungs of Plants
4 Lungs of Mars
Explanation:
Amazon rain forest is known as the lungs of the planet earth because they are responsible for the production of about $20 \%$ of the earth's oxygen. They remove a large amount of carbon dioxide from the air and give out oxygen by process of photosynthesis. The Amazon rainforests is a forest in tropical region. The tropical Amazonian rainforest in south America has a greatest biodiversity on earth.
AP EAMCET-24.09.2020 Shift-I
Ecosystem
260202
Who proposed that ecosystem is the symbol of structure and function of nature?
1 Tansley
2 Odum
3 Reiter
4 Gardner
Explanation:
British botanist A.G. Tansley first coined the term ecosystem in 1935. The functional unit of the biosphere is known as the ecosystem. An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other.
AP EAMCET-24.09.2020 Shift-I UPCPMT-2002
Ecosystem
260205
Benthic organisms are found in
1 surface of marine water
2 middle of water in sea
3 bottom of sea
4 on ground
Explanation:
Benthos or benthic organisms live on the ocean floor, either on the substrate (epifauna and epiflora) or inside it buried or burrowing in the sediment (infauna). Benthic organisms may be sessile, attached to a firm surface such as rocks and manmade structures or mobile moving freely on or in the bottom sediment.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Ecosystem
260199
What is a keystone species?
1 a species which makes up only a small proportional of the total biomass of a community, yet has a huge impact on the community's organization and survival
2 a common species that has plenty of biomass, yet has a fairly low impact on the community's organization
3 a rare species that has minimal impact on the biomass and on other species in the community
4 a dominant species that constitutes a large proportional of the biomass and which affects many other species.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. - Keystone species is a species, which has a significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species. Removal or decrease in number of keystone species causes serious disruption in structure and function of community. In intertidal regions starfish leads to dominance of mussel population that excludes algae in tropical rain forests figs function as keystone species as they provide fruit to a number of animals like birds, monkeys, bats etc. during this periods of food scarcity.
AIIMS-2008
Ecosystem
260200
The Great Barrier Reef along the east coast of Australia can be categorised as
1 Population
2 Community
3 Ecosystem
4 Biome.
Explanation:
The great Barrier reef (GBR) is a diverse ecosystem extending from more than $2300 \mathrm{~km}$ along Australia's north-east coast. An ecosystem is a whole biotic group in a given area plus its abiotic environment. The great barrier reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately $3,44,400$ square kilometres.
AIIMS-2004
Ecosystem
260201
Amazon Rain Forest is known as $\qquad$
1 Lungs of Forest
2 Lungs of our Planet
3 Lungs of Plants
4 Lungs of Mars
Explanation:
Amazon rain forest is known as the lungs of the planet earth because they are responsible for the production of about $20 \%$ of the earth's oxygen. They remove a large amount of carbon dioxide from the air and give out oxygen by process of photosynthesis. The Amazon rainforests is a forest in tropical region. The tropical Amazonian rainforest in south America has a greatest biodiversity on earth.
AP EAMCET-24.09.2020 Shift-I
Ecosystem
260202
Who proposed that ecosystem is the symbol of structure and function of nature?
1 Tansley
2 Odum
3 Reiter
4 Gardner
Explanation:
British botanist A.G. Tansley first coined the term ecosystem in 1935. The functional unit of the biosphere is known as the ecosystem. An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other.
AP EAMCET-24.09.2020 Shift-I UPCPMT-2002
Ecosystem
260205
Benthic organisms are found in
1 surface of marine water
2 middle of water in sea
3 bottom of sea
4 on ground
Explanation:
Benthos or benthic organisms live on the ocean floor, either on the substrate (epifauna and epiflora) or inside it buried or burrowing in the sediment (infauna). Benthic organisms may be sessile, attached to a firm surface such as rocks and manmade structures or mobile moving freely on or in the bottom sediment.
1 a species which makes up only a small proportional of the total biomass of a community, yet has a huge impact on the community's organization and survival
2 a common species that has plenty of biomass, yet has a fairly low impact on the community's organization
3 a rare species that has minimal impact on the biomass and on other species in the community
4 a dominant species that constitutes a large proportional of the biomass and which affects many other species.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. - Keystone species is a species, which has a significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species. Removal or decrease in number of keystone species causes serious disruption in structure and function of community. In intertidal regions starfish leads to dominance of mussel population that excludes algae in tropical rain forests figs function as keystone species as they provide fruit to a number of animals like birds, monkeys, bats etc. during this periods of food scarcity.
AIIMS-2008
Ecosystem
260200
The Great Barrier Reef along the east coast of Australia can be categorised as
1 Population
2 Community
3 Ecosystem
4 Biome.
Explanation:
The great Barrier reef (GBR) is a diverse ecosystem extending from more than $2300 \mathrm{~km}$ along Australia's north-east coast. An ecosystem is a whole biotic group in a given area plus its abiotic environment. The great barrier reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately $3,44,400$ square kilometres.
AIIMS-2004
Ecosystem
260201
Amazon Rain Forest is known as $\qquad$
1 Lungs of Forest
2 Lungs of our Planet
3 Lungs of Plants
4 Lungs of Mars
Explanation:
Amazon rain forest is known as the lungs of the planet earth because they are responsible for the production of about $20 \%$ of the earth's oxygen. They remove a large amount of carbon dioxide from the air and give out oxygen by process of photosynthesis. The Amazon rainforests is a forest in tropical region. The tropical Amazonian rainforest in south America has a greatest biodiversity on earth.
AP EAMCET-24.09.2020 Shift-I
Ecosystem
260202
Who proposed that ecosystem is the symbol of structure and function of nature?
1 Tansley
2 Odum
3 Reiter
4 Gardner
Explanation:
British botanist A.G. Tansley first coined the term ecosystem in 1935. The functional unit of the biosphere is known as the ecosystem. An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other.
AP EAMCET-24.09.2020 Shift-I UPCPMT-2002
Ecosystem
260205
Benthic organisms are found in
1 surface of marine water
2 middle of water in sea
3 bottom of sea
4 on ground
Explanation:
Benthos or benthic organisms live on the ocean floor, either on the substrate (epifauna and epiflora) or inside it buried or burrowing in the sediment (infauna). Benthic organisms may be sessile, attached to a firm surface such as rocks and manmade structures or mobile moving freely on or in the bottom sediment.
1 a species which makes up only a small proportional of the total biomass of a community, yet has a huge impact on the community's organization and survival
2 a common species that has plenty of biomass, yet has a fairly low impact on the community's organization
3 a rare species that has minimal impact on the biomass and on other species in the community
4 a dominant species that constitutes a large proportional of the biomass and which affects many other species.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. - Keystone species is a species, which has a significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species. Removal or decrease in number of keystone species causes serious disruption in structure and function of community. In intertidal regions starfish leads to dominance of mussel population that excludes algae in tropical rain forests figs function as keystone species as they provide fruit to a number of animals like birds, monkeys, bats etc. during this periods of food scarcity.
AIIMS-2008
Ecosystem
260200
The Great Barrier Reef along the east coast of Australia can be categorised as
1 Population
2 Community
3 Ecosystem
4 Biome.
Explanation:
The great Barrier reef (GBR) is a diverse ecosystem extending from more than $2300 \mathrm{~km}$ along Australia's north-east coast. An ecosystem is a whole biotic group in a given area plus its abiotic environment. The great barrier reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately $3,44,400$ square kilometres.
AIIMS-2004
Ecosystem
260201
Amazon Rain Forest is known as $\qquad$
1 Lungs of Forest
2 Lungs of our Planet
3 Lungs of Plants
4 Lungs of Mars
Explanation:
Amazon rain forest is known as the lungs of the planet earth because they are responsible for the production of about $20 \%$ of the earth's oxygen. They remove a large amount of carbon dioxide from the air and give out oxygen by process of photosynthesis. The Amazon rainforests is a forest in tropical region. The tropical Amazonian rainforest in south America has a greatest biodiversity on earth.
AP EAMCET-24.09.2020 Shift-I
Ecosystem
260202
Who proposed that ecosystem is the symbol of structure and function of nature?
1 Tansley
2 Odum
3 Reiter
4 Gardner
Explanation:
British botanist A.G. Tansley first coined the term ecosystem in 1935. The functional unit of the biosphere is known as the ecosystem. An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other.
AP EAMCET-24.09.2020 Shift-I UPCPMT-2002
Ecosystem
260205
Benthic organisms are found in
1 surface of marine water
2 middle of water in sea
3 bottom of sea
4 on ground
Explanation:
Benthos or benthic organisms live on the ocean floor, either on the substrate (epifauna and epiflora) or inside it buried or burrowing in the sediment (infauna). Benthic organisms may be sessile, attached to a firm surface such as rocks and manmade structures or mobile moving freely on or in the bottom sediment.
