$X$ - 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

$A$: Population ecology is a link between ecology,population genetics,and evolution.
$R$: Natural selection operates at the population level to evolve desired traits.

Match Column-$I$ with Column-$II$ and select the correct option.
Column-$I$Column-$II$
$(a)$ Mutualism$(i)$ Potent force of organic evolution
$(b)$ Orchid$(ii)$ Negative interaction
$(c)$ Parasitism$(iii)$ Beneficial interaction
$(d)$ Competition$(iv)$ No harm to the host

Countries with high population growth rates have taken measures to reduce them. The figure below shows the age pyramids of populations. Which of the following is a correct interpretation for their status after $20$ years?

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

Match the ecological hierarchy given in Column-$I$ with their explanation in Column-$II$. Choose the correct answer from options given below.
Column-$I$Column-$II$
$a$. Organism$i$. Flora and fauna of a specific climatic zone.
$b$. Population$ii$. Populations of different species of an area.
$c$. Community$iii$. Organisms of same kind inhabiting an area.
$d$. Biome$iv$. Basic unit of hierarchy.

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