MCQ
The difference in phloem of gymnosperms and angiosperms is due to
- AParenchyma
- BSieve cell
- ✓Companion cell
- DFibres
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$(a)$ Metagenesis is observed in Helminths.
$(b)$ Echinoderms are triploblastic and coelomate animals.
$(c)$ Round worms have organ-system level of body organization.
$(d)$ Comb plates present in ctenophores help in digestion.
$(e)$ Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.
$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Plant\,\,growth\,\,promoters & 1.\,\,Auxin \\ \hline B.\,\,Plant\,\,growth\,\,inhibitor & 2.\,\,Gibberellin \\ \hline & 3.\,\,Abscisic\,\,acid \\ \hline & 4.\,\,Cytokinin \\ \hline \end{array}$
$A - B$