During development, chordates go through a period of time when the notochord, pharyngeal pouches, dorsal tubular nerve cord, and post-anaI tail can be observed. This similarity suggests common ancestry in the area of evidence called .

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

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answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

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