During adverse season, therophytes survive by
Bulbs
Corms
Rhizomes
Seeds
In a sea shore, the benthic animals live in sandy, muddy and rocky substrata and accordingly developed the following adaptations.
$(a)$ Burrowing
$(b)$ Building cubes
$(c)$ Holdfasts / peduncle
Find the suitable substratum against each adaptation.
Gloger's rule related to the
Match Column $I$ with Column $II$ and choose correct option
Column $I$ | Column $II$ |
$a.$ Shallowest depth | $(i)$ Brown algae |
$b.$ Intermediate depth | $(ii)$ Green algae |
$c.$ Greatest depth | $(iii)$ Red algae |
Which of the following gas is most harmful for plants
Maximum contribution of $O_2$ is from