Patti used a steel wrench to work on her bicycle on a hot, sunny day. she left the wrench on the hot concrete surface for an hour while she had lunch. when she returned, the wrench was very hot to touch. what is the best explanation for how the wrench got so hot?

The wrench got so hot because of the sun heating up the steel combined with the heat of the hot concrete, and so it was unable to touch.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.