They're like wrenches; it takes work to turn the bolt "relationship" around. They're also like hammers; a relationship is very common and it takes hard work to keep 'em together.
Ergonomics
The Stone Age is the period when people used tools (hammers, arrow heads, etc.)made from rocks.
they buy other tools to make tools
Customer relationship management tools are often also called ERP-Software because an ERP-Software integrates CRM-Tools. ERP mean Enterprise Relationship Program and it normally has anything integrated that goes by the name of Customer Relationship Management. A good example of software which will help you with this is the all round solution from the company SAP.
what tools did the people use for the aboriginl arts
The relationship between man and machine is called Ergonomics.The science of ergonomics deals with how tools fit into our hands comfortably and the position and stye of controls, esp. in motor vehicles, to make them easier to use.
People use construction tools to construct and build things.
tools
the symbiotic relationship between malaria and people is parasitism
The Kaurna people used a variety of different tools. Some of the tools used by the Kauma include nets, boomerangs, spears, and digging sticks.
There are many places one can find tools for an ER diagram. ER stands for Entity-Relationship. These tools can be found at sites such as Case Studio, Edraws Soft, and Smartdraw.
It is a parasitic relationship.