The nucleolus is the central support structure
Missense mutations.
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Because a<span>t some point during its life cycle, it had a dorsal hollow nerve chord, notochord, pharyngeal gill slits, and finally a muscular tail.
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That would be A.
Dicots grow flowers with petals in multiplies of 4 and 5, monocots in multiples of 3. See the attached pic:)
Because bryophytes do not have a vascular tissue they
D) grow close to the ground