If your digital multimeter offers a frequency setting (Hz is the symbol) on the dial: 1  Turn the dial to Hz. 2  First insert the black test lead into the COM jack. 3  Then insert the red lead into the V Ï jack. 4  Connect the black test lead first, the red test lead second.  Read the measurement in the display.
Both systems divided living things into 2 main groups, animal and plants, but aristotses system had 3 sublevels and Linnaeus's had 6. Aristotle divided by habitat and stems and Linnaeus divided by morphology.
The two kingdom classification system was given by Carlous Linaaeus in 1758. Carlous Linnaeus classified living things into two kingdoms Animal Kingdom which he called as Regnum Animale for animals and for plants he gave the Vegetable Kingdom which he called as Regnum Vegetabile; now known as the Plant Kingdom.