Carbon dioxide transport in the blood involves several chemical species, including ions and neutral molecules. Three of these species are listed in the table below. Place ticks ($✓$) in the correct boxes to indicate which properties and features are true for each species. | Species | Has a negative charge | Binds directly to haemoglobin | Is a direct product of the ionic dissociation of carbonic acid | Moves across the erythrocyte membrane in exchange for chloride ions | | :--- | :---: | :---: | :---: | :---: | | Carbon dioxide | | | | | | Hydrogen ion | | | | | | Hydrogencarbonate | | | | |