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(D) The correct answer is $(d)$.Both populations are herbivorous,thus they do not consume each other.If the food sources for these populations $A$ and

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population $B$ competed more successfully for food than population $A$

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(D) The correct answer is $(d)$.Both populations are herbivorous,thus they do not consume each other.If the food sources for these populations $A$ and $B$ had decreased,both populations would have declined.If population $A$ had produced more offspring,the graph for population $A$ would have shown an increase.Based on the graph,population $B$ is more successful in competing for limited resources than population $A$. This interspecific competition leads to an increase in the number of organisms in population $B$ while the number of organisms in population $A$ decreases.

Column-$I$	Column-$II$
$a$. Sea anemone	$i$. Cyanobacteria
$b$. Plant	$ii$. Man
$c$. Plasmodium	$iii$. Herbivore
$d$. Fungi	$iv$. Clown fish

The following graph depicts changes in two populations ($A$ and $B$) of herbivores in a grassy field. $A$ possible reason for these changes is that

Similar Questions

Match the pairs of partners showing interspecific interaction from Column-$I$ and Column-$II$:

Column-$I$ Column-$II$

$a$. Sea anemone $i$. Cyanobacteria

$b$. Plant $ii$. Man

$c$. Plasmodium $iii$. Herbivore

$d$. Fungi $iv$. Clown fish

Sometimes parasites themselves are parasitised by other organisms. Such parasites are known as:

Statement-$I$: In the absence of predators,prey species population can decline and cause ecosystem instability.
Statement-$II$: Predators are prudent in nature and overexploit their prey.

Select the correct option for the following organisms:
$I -$ Copepods,$II -$ Liver fluke,$III -$ Lice,$IV -$ Ticks,$V -$ Ascaris,$VI -$ Cuscuta
Ectoparasites $\quad\quad$ Endoparasites

In a humid climate,the presence of spines in shrubs is primarily:

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