Which of the following statements is wrong?
- A$A$ stable community should show much variation in productivity from year to year.
- BAccording to Tillman's long-term ecosystem experiments,increased diversity contributed to higher productivity.
- C$A$ stable community must be resistant to occasional disturbances.
- DRich biodiversity is essential for ecosystem health but imperative for the very survival of the human race on this planet.
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Similar Questions
The World Summit on Sustainable Development held in $2002$ in Johannesburg,South Africa,pledged for:
MediumNEET 2022
View SolutionCategorize the following ecosystem services into the appropriate groups: Broadly Utilitarian vs. Narrowly Utilitarian.
$I-$ Industrial products
$II-$ Dyes
$III-$ Construction materials
$IV-$ Pollination
$V-$ Watching spring flowers in full bloom
$VI-$ Watching a bulbul bird in the morning
$VII-$ Lubricants
$VIII-$ Food
Select the correct sequence for (Narrowly Utilitarian,Broadly Utilitarian).
$I-$ Industrial products
$II-$ Dyes
$III-$ Construction materials
$IV-$ Pollination
$V-$ Watching spring flowers in full bloom
$VI-$ Watching a bulbul bird in the morning
$VII-$ Lubricants
$VIII-$ Food
Select the correct sequence for (Narrowly Utilitarian,Broadly Utilitarian).
Medium
View SolutionWhich of the following pairs of an animal and a plant represents endangered organisms in India?
Match the category in Column-$I$ with their description in Column-$II$.Column-$I$ Column-$II$ $i$. Extinct $a$. Decline in species population from $50\%$ to $70\%$ over last $10$ years. $ii$. Endangered $b$. Species that are abundant. $iii$. Vulnerable $c$. Species of which its last individual has died. $iv$. Least concern $d$. Decline in species population from $30\%$ to $50\%$ over last $10$ years.
| Column-$I$ | Column-$II$ |
| $i$. Extinct | $a$. Decline in species population from $50\%$ to $70\%$ over last $10$ years. |
| $ii$. Endangered | $b$. Species that are abundant. |
| $iii$. Vulnerable | $c$. Species of which its last individual has died. |
| $iv$. Least concern | $d$. Decline in species population from $30\%$ to $50\%$ over last $10$ years. |
If the Bengal tiger becomes extinct,then . . . . . . .
Medium
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