20 is the Number of Neutrons of potassium.
Answer:
1) It's called taxonomy
2) There are 7
3) The basic difference between them is Monera are unicellular and prokaryotic cellular structures, whereas Protista are unicellular and eukaryotic cellular structure. Cell organelles are absent in Monera, but Protista is well-defined and has membrane-bound organelles.
4) Reptiles and Fish belong to kingdom Animalia
The main difference is that quotas restrict quantity while tariff works through prices
Explanation:
Amino acid is made of an Amino group , a Carboxyl group And an R group . there is also an additional H there .