Answer:
Melatonin is released by the pineal gland, that is hormones or neurotransmitter which is related to the sleep. It is influence the sleep wake cycle. Where as melanin is pigment that naturally colors skin or the hair. More the melanin more the darker the skin or hair.
Melatonin regulates changing in pigmentation by association of melanin into the melanocytes within the skin, leads to the skin to color change. This relation is is also accountable for the yellowish skin color in elderly people and people with insomnia.
A good question to ask in such as case is; ""who has treated their illnesses in the past?"
Medical care for the elderly is very sensitive. Most elderly people are very choosy when it pertains to who or where they receive medical care. Many times, this is as a result of past experiences.
Hence, a good question to ask when a person whose elderly parents are sick but refuse to make an appointment at the doctor is "who has treated their illnesses in the past".
Learn more about elderly patients: brainly.com/question/9781572
Answer: E
Explanation: Plant fibre is composed mainly of cellulose and cellulose fibres are most commonly used to make paper and cloth. Cellulose produces long, often highly lustrous fibres when suitably prepared.
Answer: This might make them rush the speed and lessen the quality of health research because of the amount of patients and their different circumstances. To resolve this you could focus on a group of patients with similar health and disease trends rather than every patient all the time.
Answer: The blood vessels and heart are apart of the circulatory system
Explanation: