$X$ - In deep-sea hydrothermal vents,the average temperature is between $25^{\circ}C$ to $30^{\circ}C$.
$Y$ - Reptiles and amphibians are eurythermal.

  • A
    $X-Y$ correct
  • B
    $X-Y$ incorrect
  • C
    $X$ - correct,$Y$ - incorrect
  • D
    $X$ - incorrect,$Y$ - correct

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Similar Questions

Match the column-$I$ with column-$II$ and select the correct option given:-
Column-$I$Column-$II$
$A$. $J$-shape curve$(i)$ Sigmoid curve
$B$. Verhulst-Pearl logistic growth$(ii)$ Breed only once in their lifetime
$C$. Extinction of Abingdon tortoise$(iii)$ Competition for same resources
$D$. Pacific salmon fish and Bamboo$(iv)$ Resources unlimited

$A$: Different ecotypes of a species,despite being genotypically different,are interfertile.
$R$: They are locally natural selections from a pool of genetic variations found in the gene pool of a species.

Match the columns:
Column-$I$ Column-$II$
$(a)$ Earthworm $(i)$ Birth-rate
$(b)$ Succession $(ii)$ Pioneer species
$(c)$ Population rise $(iii)$ Pollination
$(d)$ Ecological services $(iv)$ Saprotrophs

Consider the following statements $(A-D)$ each with one or two blanks.
$(A)$ Bears go into $ . . . . . . (1) . . . . . . $ during winter to $ . . . . . . (2) . . . . . . $ cold weather.
$(B)$ $A$ conical age pyramid with a broad base represents $ . . . . . . (3) . . . . . . $ human population.
$(C)$ $A$ wasp pollinating a fig flower is an example of $ . . . . . . (4) . . . . . . $.
$(D)$ An area with high levels of species richness is known as $ . . . . . . (5) . . . . . . $.
Which one of the following options gives the correct fill-ups for the respective blank numbers from $(1)$ to $(5)$ in the statements?

Match List-$I$ with List-$II$.
List-$I$List-$II$
$A$. Logistic growth$I$. Unlimited resource availability condition
$B$. Exponential growth$II$. Limited resource availability condition
$C$. Expanding age pyramid$III$. The percent individuals of pre-reproductive age is largest followed by reproductive and post-reproductive age groups
$D$. Stable age pyramid$IV$. The percent individuals of pre-reproductive and reproductive age group are same

Choose the correct answer from the options given below:

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