A - Loss of biodiversity in a region may lead | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) According to David Tilman's long-term ecosystem experiments,communities with more species generally show less year-to-year variation in total biom

Vedclass · Accepted Answer

$A$ is incorrect and $R$ is correct.

Vedclass · Answer

(D) According to David Tilman's long-term ecosystem experiments,communities with more species generally show less year-to-year variation in total biomass.Increased diversity contributes to higher productivity.Therefore,the loss of biodiversity leads to a decrease in plant production,not an increase.Thus,statement $A$ is incorrect.Ecological studies have shown that stable communities are resistant to occasional disturbances (natural or man-made) and invasions by alien species.Loss of biodiversity makes an ecosystem less stable and more vulnerable to environmental perturbations such as drought.Thus,statement $R$ is correct.

Column-$I$	Column-$II$
$(i)$ Nile perch in Lake Victoria	$(i)$ Obvious reasons for habitat destruction
$(ii)$ Narrowly utilitarian	$(ii)$ Habitat destruction
$(iii)$ Main cause for biodiversity loss	$(iii)$ High endemism
$(iv)$ Hotspot	$(iv)$ Alien species

$A$ - Loss of biodiversity in a region may lead to an increase in plant production.
$R$ - Loss of biodiversity in a region may lead to lowered resistance to environmental perturbations such as drought.

Similar Questions

Find the wrongly matched pair.

$A$: Western Ghats are included among the hot spots of biodiversity.
$R$: Western Ghats have greater amphibian diversity than Eastern Ghats.

Match the columns:

Column-$I$ Column-$II$

$(i)$ Nile perch in Lake Victoria $(i)$ Obvious reasons for habitat destruction

$(ii)$ Narrowly utilitarian $(ii)$ Habitat destruction

$(iii)$ Main cause for biodiversity loss $(iii)$ High endemism

$(iv)$ Hotspot $(iv)$ Alien species

What does '$W$' represent in the given figure?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$A$ - Loss of biodiversity in a region may lead to an increase in plant production.$R$ - Loss of biodiversity in a region may lead to lowered resistance to environmental perturbations such as drought.