Hello Daniel......
Have a beautiful and joyful day ahead.
A Karyotype is the number (or characteristics of) of the chromosome in a cell. In humans the typical number of chromosomes is 46. Sometimes humans have a different number of chromosomes and then the<span> karyotype (for example the number) can be used for reporting for example of genetic disorders- so the answer is that it can be used for reporting of genetic disorders</span>
The nervous system signals the endocrine system to release
hormones in response to a stimulus.
The nervous system respond to stimulus through action potentials and neurotransmitters and they signals the endocrine system to secrete hormones.
The endocrine system is responsible for secreting hormones into the blood which is transported to the target cells. These hormones are responsible for metabolism , growth and response to stress. The hormones secreted provide feedback to the brain so as to affect neural processing.