Tackle is a synonym of Undertake. Undertake is a type of Accept. Accept is a synonym of Regard. Regard is etymologically related to Reward. 
Biological is related to Cell. Cell is related to Basis. Basis is a synonym of Foundation. 
Tackle <--Synonym--> Undertake --IsA--> Accept <--Synonym--> Regard --EtymologicallyRelatedTo--> Reward 
Biological <--RelatedTo--> Cell <--RelatedTo--> Basis <--Synonym--> Foundation 