The adrenal glands, which are part of the endocrine system are two triangular-shaped glands located at the top of each kidney. The gland comprises of an outer part known as the cortex, and an inner part known as the medulla.
The adrenal glands produce hormones which help to regulate essential functions of the body. One of the important functions of the adrenal gland is the production of hormones that work with the sympathetic nervous system to create a a fight or flight response during stress or when the body perceives a threat. Hormones such as adrenaline and cortisol is released into the blood stream, which increase heart rate and blood pressure, increase energy supplies, as well as put the body in a state that enables it to fight a threat or flee from it.
B. Gene expression is in them is similar to us but facilitates the use of bacteria in recombiant biotechnology and gene therapy. We human have eukaryotic cells which have a devoloped nucleas whereas small bacteria have prokaryotic cells with no definite nucleus using more biotechnology. Other all are not true.
