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 .

maybe because its impossible for balloons to lift a whole entire house.

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

hope it ,

bioteacher101