How do you know that an organism belongs to the animal kingdom

Scientifically speaking, all organisms that belong to this Kingdom are Eukaryotic organisms. They are all multicellular, with many cells present. The cells do not have cell walls in them. Another important feature is that they have a heterotrophic mode of nutrition, which means that they cannot make their own food.

Explanation:

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.