Question
Bioassay for gibberellin is
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| $(a)$ Fourth trophic level | $(i)$ Crow |
| $(b)$ Second trophic level | $(ii)$ Vulture |
| $(c)$ First trophic level | $(iii)$ Rabbit |
| $(d)$ Third trophic level | $(iv)$ Grass |
Select the correct option :
$(a)\quad(b) \quad(c) \quad(d)$
$I.$ In liverworts sexual reproduction occurs by the fusion of antherozoids and egg, which are produced in anthridium and archegonium, respectively
$II$. Both male and female sex organs may be present on same thalli or different thalli
$III.$ Zygote give rise to sporophyte, which is differentiated into food, seta and capsule
$IV$. Some cells of capsule undergoes meiosis and give rise to haploid spores