Answer:
25. B
26. C
27. C
28. Answer is adrenaline
Step-by-step explanation:
25. The peripheral nervous system is all parts of the nervous system outside the brain and the spinal cord. The brain and the spinal cord make up the central nervous system. This includes spinal nerves, sensory nerves, and motor nerves.
26. Sensory nerves recieve information from the external environment (i.e. they sense it). Motor nerves respond to stimuli (i.e. they have motor/movement function)
27. The thyroid gland secretes hormones that influence the body's metabolism. When it is overactive, it secretes too much of these hormones, and can cause the metabolic rate to be too high. This can cause broad symptoms like weight loss, heart palpatations, and anxiety
28. Adrenaline is the fight or flight hormone that is released when we are in stressful situations. It increases your heart rate, makes you more focussed, and makes the body's energy supplies accessible.