In the united states and canada, psychological problems are classified by using the a) physician's desk reference b) diagnostic and statistical manual of mental disorders (dsm-iv-tr) c)psychiatrist's desk reference d) manual of abnormal behavior

The Manual of Mental Disorders (DSM-IV-TR). This manual, which at the moment is at its fifth edition (DSM-V-TR), is the standard book by which psychiatric and psychological practicioners diagnose different mental conditions. It is also used as a references for many other practicioners which work in related fields.

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b

Lightning would be your answer