In most animals, the metabolic reactions proceed in a ...$A$... temperature range (in humans, it is $37^{\circ} C$ ). But there are microbes (archaebacteria) that flourish in hot springs and deep sea hydrothermal vents where temperature far exceed ...$B$...
Choose the correct option for $A$ and $B$
$A-$narrow; $B-100$ ${ }^{\circ} C$
$A-$broad; $B- 100^{\circ} C$
$A-$median; $B-100$ ${ }^{\circ} C$
$A-$broad; $B-40$ ${ }^{\circ} C$
Halophytes are
Match the following:
Column $– I$ | Column $- II$ |
$(a)$ Thrive in wide range of temperature | $(i)$ Eurythermal |
$(b)$ Tolerant of a wide range of salinities | $(ii)$ Stenothermal |
$(c)$ Thrive in narrow range of temperature | $(iii)$ Euryhaline |
$(d)$ Tolerant of a narrow range of salinities | $(iv)$ Stenohaline |
Biological concept of species is mainly based on
Soil erosion is greater when
The organisms found in boiling thermal springs are