A keystone species

Gujarati

Hindi

11.Organisms and Populations

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What is a keystone species

A rare species that has minimal impact on the biomass and on other species in the community

A dominant species that constitutes a large proportion of the biomass and which affects many other species

A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the community's organization and survival

A common species that has plenty of biomass, yet has a fairly low impact on the community's organization

(AIPMT-2004)

Solution

It’s obvious.

Standard 12

Biology

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

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(NEET-2018)

Define the following terms and give one example for each:

$(a)$ Commensalism

$(b)$ Parasitism

$(c)$ Camouflage

$(d)$ Mutualism

$(e)$ Interspecific competition

easy

Match the column $I$ and $II$

Column – $I$ Column – $II$

$(a)$ Parasitism $(i)$ $++$

$(b)$ Commensalism $(ii)$ $+-$

$(c)$ Amensalism $(iii)$ $0+$

$(d)$ Mutualism $(iv)$ $0-$

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(AIIMS-2019)

Which competition is more intense?

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When the organisms live together in such a manner that one organism is benifitted, while other has no effects, it is called

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Column – $I$	Column – $II$
$(a)$ Parasitism	$(i)$ $++$
$(b)$ Commensalism	$(ii)$ $+-$
$(c)$ Amensalism	$(iii)$ $0+$
$(d)$ Mutualism	$(iv)$ $0-$

What is a keystone species

Solution

Similar Questions

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

Define the following terms and give one example for each: $(a)$ Commensalism $(b)$ Parasitism $(c)$ Camouflage $(d)$ Mutualism $(e)$ Interspecific competition

Match the column $I$ and $II$ Column – $I$ Column – $II$ $(a)$ Parasitism $(i)$ $++$ $(b)$ Commensalism $(ii)$ $+-$ $(c)$ Amensalism $(iii)$ $0+$ $(d)$ Mutualism $(iv)$ $0-$

Which competition is more intense?

When the organisms live together in such a manner that one organism is benifitted, while other has no effects, it is called

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Define the following terms and give one example for each:

$(a)$ Commensalism

$(b)$ Parasitism

$(c)$ Camouflage

$(d)$ Mutualism

$(e)$ Interspecific competition

Match the column $I$ and $II$

Column – $I$ Column – $II$

$(a)$ Parasitism $(i)$ $++$

$(b)$ Commensalism $(ii)$ $+-$

$(c)$ Amensalism $(iii)$ $0+$

$(d)$ Mutualism $(iv)$ $0-$