mRNA is a molecule of


A. single-stranded RNA


B. double-stranded RNA


C.  Peptide


D. Circular RNA



Which is ‘true jellyfish’?

A. Cubozoa B. Scyphozoa C. Staurozoa D. Hydrozoa ANSWERB. Scyphozoa.Cubozoa—box jellyfishScyphozoa—true jellyfishStaurozoa—stalked jellyfishHydrozoa—small jellyfish

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