344505
If primary producer are absent for any ecosystem which of the following will occurs:-
1 Herbivores will not survive
2 Carnivores will not survive
3 Both herbivore & carnivore will be disintegrated because of food absence
4 No change will takes place
Explanation:
Herbivore is dependent on primary producer for its survival and carnivore is dependent on herbivorous animals for its survival.
BIOXII14: ECOSYSTEM
344506
Study the following statements and select the incorrect one.
1 The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain
2 Topographic factors are the ecological factors connected with physical geography of earth with respect to that habitat
3 A food chain can not represent food web also
4 None of these
Explanation:
The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain, this statement si wrong as pyramid of number is inverted in parasitic food chain.
BIOXII14: ECOSYSTEM
344507
Pyramid of numbers is:
1 Always upright
2 Always inverted
3 Either upright or inverted
4 Neither upright nor inverted.
Explanation:
Pyramid of Number is either upright or inverted When small number of herbivores feeding on large number of plants give an upright pyramid. Large number of insects taking food from a treat gives an inverted pyramids.
NCERT Exemplar
BIOXII14: ECOSYSTEM
344508
In a stable ecosystem which of the following limits the number of trophic levels?
1 Biomass
2 Availability of nutrients
3 Number of nutrients
4 None of the above
Explanation:
Availability of nutrients is the main cause for biomass production, and for a ecosystem to be stable.
BIOXII14: ECOSYSTEM
344509
What type of pyramid would be obtained with the following data? A. Secondary consumers: \(2.6 \mathrm{~g} / \mathrm{m}^{2} /\) year B. Primary consumers: \(48 \mathrm{~g} / \mathrm{m}^{2} /\) year C. Primary producers: \(763 \mathrm{~g} / \mathrm{m}^{2} /\) year
1 Upright pyramid of energy
2 Inverted pyramid of energy
3 Upright pyramid of biomass
4 Inverted pyramid of biomass
Explanation:
Biomass of \(\mathrm{PP}(763)>\mathrm{PC}\) (48) \(>\mathrm{SC}\) (2.6). So, the given data produces an upright pyramid of biomass.
344505
If primary producer are absent for any ecosystem which of the following will occurs:-
1 Herbivores will not survive
2 Carnivores will not survive
3 Both herbivore & carnivore will be disintegrated because of food absence
4 No change will takes place
Explanation:
Herbivore is dependent on primary producer for its survival and carnivore is dependent on herbivorous animals for its survival.
BIOXII14: ECOSYSTEM
344506
Study the following statements and select the incorrect one.
1 The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain
2 Topographic factors are the ecological factors connected with physical geography of earth with respect to that habitat
3 A food chain can not represent food web also
4 None of these
Explanation:
The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain, this statement si wrong as pyramid of number is inverted in parasitic food chain.
BIOXII14: ECOSYSTEM
344507
Pyramid of numbers is:
1 Always upright
2 Always inverted
3 Either upright or inverted
4 Neither upright nor inverted.
Explanation:
Pyramid of Number is either upright or inverted When small number of herbivores feeding on large number of plants give an upright pyramid. Large number of insects taking food from a treat gives an inverted pyramids.
NCERT Exemplar
BIOXII14: ECOSYSTEM
344508
In a stable ecosystem which of the following limits the number of trophic levels?
1 Biomass
2 Availability of nutrients
3 Number of nutrients
4 None of the above
Explanation:
Availability of nutrients is the main cause for biomass production, and for a ecosystem to be stable.
BIOXII14: ECOSYSTEM
344509
What type of pyramid would be obtained with the following data? A. Secondary consumers: \(2.6 \mathrm{~g} / \mathrm{m}^{2} /\) year B. Primary consumers: \(48 \mathrm{~g} / \mathrm{m}^{2} /\) year C. Primary producers: \(763 \mathrm{~g} / \mathrm{m}^{2} /\) year
1 Upright pyramid of energy
2 Inverted pyramid of energy
3 Upright pyramid of biomass
4 Inverted pyramid of biomass
Explanation:
Biomass of \(\mathrm{PP}(763)>\mathrm{PC}\) (48) \(>\mathrm{SC}\) (2.6). So, the given data produces an upright pyramid of biomass.
344505
If primary producer are absent for any ecosystem which of the following will occurs:-
1 Herbivores will not survive
2 Carnivores will not survive
3 Both herbivore & carnivore will be disintegrated because of food absence
4 No change will takes place
Explanation:
Herbivore is dependent on primary producer for its survival and carnivore is dependent on herbivorous animals for its survival.
BIOXII14: ECOSYSTEM
344506
Study the following statements and select the incorrect one.
1 The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain
2 Topographic factors are the ecological factors connected with physical geography of earth with respect to that habitat
3 A food chain can not represent food web also
4 None of these
Explanation:
The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain, this statement si wrong as pyramid of number is inverted in parasitic food chain.
BIOXII14: ECOSYSTEM
344507
Pyramid of numbers is:
1 Always upright
2 Always inverted
3 Either upright or inverted
4 Neither upright nor inverted.
Explanation:
Pyramid of Number is either upright or inverted When small number of herbivores feeding on large number of plants give an upright pyramid. Large number of insects taking food from a treat gives an inverted pyramids.
NCERT Exemplar
BIOXII14: ECOSYSTEM
344508
In a stable ecosystem which of the following limits the number of trophic levels?
1 Biomass
2 Availability of nutrients
3 Number of nutrients
4 None of the above
Explanation:
Availability of nutrients is the main cause for biomass production, and for a ecosystem to be stable.
BIOXII14: ECOSYSTEM
344509
What type of pyramid would be obtained with the following data? A. Secondary consumers: \(2.6 \mathrm{~g} / \mathrm{m}^{2} /\) year B. Primary consumers: \(48 \mathrm{~g} / \mathrm{m}^{2} /\) year C. Primary producers: \(763 \mathrm{~g} / \mathrm{m}^{2} /\) year
1 Upright pyramid of energy
2 Inverted pyramid of energy
3 Upright pyramid of biomass
4 Inverted pyramid of biomass
Explanation:
Biomass of \(\mathrm{PP}(763)>\mathrm{PC}\) (48) \(>\mathrm{SC}\) (2.6). So, the given data produces an upright pyramid of biomass.
344505
If primary producer are absent for any ecosystem which of the following will occurs:-
1 Herbivores will not survive
2 Carnivores will not survive
3 Both herbivore & carnivore will be disintegrated because of food absence
4 No change will takes place
Explanation:
Herbivore is dependent on primary producer for its survival and carnivore is dependent on herbivorous animals for its survival.
BIOXII14: ECOSYSTEM
344506
Study the following statements and select the incorrect one.
1 The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain
2 Topographic factors are the ecological factors connected with physical geography of earth with respect to that habitat
3 A food chain can not represent food web also
4 None of these
Explanation:
The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain, this statement si wrong as pyramid of number is inverted in parasitic food chain.
BIOXII14: ECOSYSTEM
344507
Pyramid of numbers is:
1 Always upright
2 Always inverted
3 Either upright or inverted
4 Neither upright nor inverted.
Explanation:
Pyramid of Number is either upright or inverted When small number of herbivores feeding on large number of plants give an upright pyramid. Large number of insects taking food from a treat gives an inverted pyramids.
NCERT Exemplar
BIOXII14: ECOSYSTEM
344508
In a stable ecosystem which of the following limits the number of trophic levels?
1 Biomass
2 Availability of nutrients
3 Number of nutrients
4 None of the above
Explanation:
Availability of nutrients is the main cause for biomass production, and for a ecosystem to be stable.
BIOXII14: ECOSYSTEM
344509
What type of pyramid would be obtained with the following data? A. Secondary consumers: \(2.6 \mathrm{~g} / \mathrm{m}^{2} /\) year B. Primary consumers: \(48 \mathrm{~g} / \mathrm{m}^{2} /\) year C. Primary producers: \(763 \mathrm{~g} / \mathrm{m}^{2} /\) year
1 Upright pyramid of energy
2 Inverted pyramid of energy
3 Upright pyramid of biomass
4 Inverted pyramid of biomass
Explanation:
Biomass of \(\mathrm{PP}(763)>\mathrm{PC}\) (48) \(>\mathrm{SC}\) (2.6). So, the given data produces an upright pyramid of biomass.
344505
If primary producer are absent for any ecosystem which of the following will occurs:-
1 Herbivores will not survive
2 Carnivores will not survive
3 Both herbivore & carnivore will be disintegrated because of food absence
4 No change will takes place
Explanation:
Herbivore is dependent on primary producer for its survival and carnivore is dependent on herbivorous animals for its survival.
BIOXII14: ECOSYSTEM
344506
Study the following statements and select the incorrect one.
1 The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain
2 Topographic factors are the ecological factors connected with physical geography of earth with respect to that habitat
3 A food chain can not represent food web also
4 None of these
Explanation:
The pyramid of biomass is upright in an grassland ecosystem and the pyramid of numbers is upright in a parasitic food chain, this statement si wrong as pyramid of number is inverted in parasitic food chain.
BIOXII14: ECOSYSTEM
344507
Pyramid of numbers is:
1 Always upright
2 Always inverted
3 Either upright or inverted
4 Neither upright nor inverted.
Explanation:
Pyramid of Number is either upright or inverted When small number of herbivores feeding on large number of plants give an upright pyramid. Large number of insects taking food from a treat gives an inverted pyramids.
NCERT Exemplar
BIOXII14: ECOSYSTEM
344508
In a stable ecosystem which of the following limits the number of trophic levels?
1 Biomass
2 Availability of nutrients
3 Number of nutrients
4 None of the above
Explanation:
Availability of nutrients is the main cause for biomass production, and for a ecosystem to be stable.
BIOXII14: ECOSYSTEM
344509
What type of pyramid would be obtained with the following data? A. Secondary consumers: \(2.6 \mathrm{~g} / \mathrm{m}^{2} /\) year B. Primary consumers: \(48 \mathrm{~g} / \mathrm{m}^{2} /\) year C. Primary producers: \(763 \mathrm{~g} / \mathrm{m}^{2} /\) year
1 Upright pyramid of energy
2 Inverted pyramid of energy
3 Upright pyramid of biomass
4 Inverted pyramid of biomass
Explanation:
Biomass of \(\mathrm{PP}(763)>\mathrm{PC}\) (48) \(>\mathrm{SC}\) (2.6). So, the given data produces an upright pyramid of biomass.
