Why are there fewer species of vertebrates than invertebrates?

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime