344551
The species that invade a bare area are called
1 Keystone species
2 Critical species
3 Edge species
4 Pioneer species
Explanation:
The species that invade a bare area are called pioneer species.
BIOXII14: ECOSYSTEM
344552
Change observed in successive seral stages are
1 Change in diversity of species of organisms
2 Increase in number of species
3 Increase in total biomass
4 All the above
Explanation:
In successive seral stage, there will be change in diversity of species of organisms, increase in number of species and an increase in total biomass.
BIOXII14: ECOSYSTEM
344553
Both hydrarch and xerarch successions lead to
1 Medium water conditions
2 Xeric conditions
3 High dry conditions
4 Excessive wet conditions.
Explanation:
Hydrarch and Xerarch succession takes place in wetter and dry places respectively. Successional series of hydrarch continues from hydric to mesic condition whereas xerarch series continues from xeric to mesic. Hence both leads to mesic condition (medium water conditions).
NEET - 2011
BIOXII14: ECOSYSTEM
344554
Identify the correct statement.
1 The succession resulting from changes brought about by factors external to community is called allogenic succession
2 The diversity of species tends to in with succession.
3 Biomass and standing crop of organic matter increase with succession.
4 All of these
Explanation:
All the statements are correct. The succession resulting from changes brought about by factors external to community is called allogenic succession. The diversity of species tends to increase with succession.. Biomass and standing crop of organic matter increase with succession.
344551
The species that invade a bare area are called
1 Keystone species
2 Critical species
3 Edge species
4 Pioneer species
Explanation:
The species that invade a bare area are called pioneer species.
BIOXII14: ECOSYSTEM
344552
Change observed in successive seral stages are
1 Change in diversity of species of organisms
2 Increase in number of species
3 Increase in total biomass
4 All the above
Explanation:
In successive seral stage, there will be change in diversity of species of organisms, increase in number of species and an increase in total biomass.
BIOXII14: ECOSYSTEM
344553
Both hydrarch and xerarch successions lead to
1 Medium water conditions
2 Xeric conditions
3 High dry conditions
4 Excessive wet conditions.
Explanation:
Hydrarch and Xerarch succession takes place in wetter and dry places respectively. Successional series of hydrarch continues from hydric to mesic condition whereas xerarch series continues from xeric to mesic. Hence both leads to mesic condition (medium water conditions).
NEET - 2011
BIOXII14: ECOSYSTEM
344554
Identify the correct statement.
1 The succession resulting from changes brought about by factors external to community is called allogenic succession
2 The diversity of species tends to in with succession.
3 Biomass and standing crop of organic matter increase with succession.
4 All of these
Explanation:
All the statements are correct. The succession resulting from changes brought about by factors external to community is called allogenic succession. The diversity of species tends to increase with succession.. Biomass and standing crop of organic matter increase with succession.
344551
The species that invade a bare area are called
1 Keystone species
2 Critical species
3 Edge species
4 Pioneer species
Explanation:
The species that invade a bare area are called pioneer species.
BIOXII14: ECOSYSTEM
344552
Change observed in successive seral stages are
1 Change in diversity of species of organisms
2 Increase in number of species
3 Increase in total biomass
4 All the above
Explanation:
In successive seral stage, there will be change in diversity of species of organisms, increase in number of species and an increase in total biomass.
BIOXII14: ECOSYSTEM
344553
Both hydrarch and xerarch successions lead to
1 Medium water conditions
2 Xeric conditions
3 High dry conditions
4 Excessive wet conditions.
Explanation:
Hydrarch and Xerarch succession takes place in wetter and dry places respectively. Successional series of hydrarch continues from hydric to mesic condition whereas xerarch series continues from xeric to mesic. Hence both leads to mesic condition (medium water conditions).
NEET - 2011
BIOXII14: ECOSYSTEM
344554
Identify the correct statement.
1 The succession resulting from changes brought about by factors external to community is called allogenic succession
2 The diversity of species tends to in with succession.
3 Biomass and standing crop of organic matter increase with succession.
4 All of these
Explanation:
All the statements are correct. The succession resulting from changes brought about by factors external to community is called allogenic succession. The diversity of species tends to increase with succession.. Biomass and standing crop of organic matter increase with succession.
344551
The species that invade a bare area are called
1 Keystone species
2 Critical species
3 Edge species
4 Pioneer species
Explanation:
The species that invade a bare area are called pioneer species.
BIOXII14: ECOSYSTEM
344552
Change observed in successive seral stages are
1 Change in diversity of species of organisms
2 Increase in number of species
3 Increase in total biomass
4 All the above
Explanation:
In successive seral stage, there will be change in diversity of species of organisms, increase in number of species and an increase in total biomass.
BIOXII14: ECOSYSTEM
344553
Both hydrarch and xerarch successions lead to
1 Medium water conditions
2 Xeric conditions
3 High dry conditions
4 Excessive wet conditions.
Explanation:
Hydrarch and Xerarch succession takes place in wetter and dry places respectively. Successional series of hydrarch continues from hydric to mesic condition whereas xerarch series continues from xeric to mesic. Hence both leads to mesic condition (medium water conditions).
NEET - 2011
BIOXII14: ECOSYSTEM
344554
Identify the correct statement.
1 The succession resulting from changes brought about by factors external to community is called allogenic succession
2 The diversity of species tends to in with succession.
3 Biomass and standing crop of organic matter increase with succession.
4 All of these
Explanation:
All the statements are correct. The succession resulting from changes brought about by factors external to community is called allogenic succession. The diversity of species tends to increase with succession.. Biomass and standing crop of organic matter increase with succession.
