Number of endangered species of angiosperms in India is
$487$
$3000$
$5000$
$15000$
Which of the following isolation is important for speciation
One of the effects of dust is to cause
Select the correct match
$(I)$ | $(II)$ | $(III)$ |
$(a)$ $+$ | $(i)$ $-$ | $(P)$ Amensalism |
$(b)$ $-$ | $(ii)$ $-$ | $(Q)$ Commensalism |
$(c)$ $-$ | $(iii)$ $0$ | $(R)$ Predation |
$(d)$ $+$ | $(iv)$ $0$ | $(S)$ Competition |
Phenotypic variants formed in a population due to change in environment are called
For better survival of the human population, which of the following steps is most important?