3 examples of osmosis in animals​

The movement of water into the cytoplasm in unicellular organism such as paramecium and Amoeba.

Re-absorption of water in the kidney tubules of mammals.

Explanation:

example of osmosis in animals is the shrinking of slugs on exposure to salt. The skin of slugs is a semi-permeable membrane that on exposure to salt, draws out water from the cells resulting in the shrinking of the cell and, in turn, the animal. hope this helps you.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.