Answer:
Norepinephrine
Explanation:
Nerve cells and circulating hormones are the one responsible for vasoconstriction of the vessel walls, as they do not enter the tunica media of the blood vessel, the nerves do not synapse directly on the smooth muscle cells. Instead, they release the neurotransmitter, norepinephrine, which diffuses into the media and acts on the nearby smooth muscle cells, which result in contraction of the entire muscle cell layer and thus reducing the radius of the vessel lumen.
It would belong to the Alkaline class
Answer:
The preferable option will be - B.
B. A 28-year-old anorexic female
Explanation:
- Anorexia is simply known as an eating disorder.
- Losing weight, fear of gaining weight, and a strong desire to be thin are the most popular symptoms.
- Some genetic problems, some social connection factors from the glamour world, athletics, etc. But the exact accurate cause is still unknown.
- Some complications are seen such as osteoporosis, infertility, heart damage, and menopause.
The BMI categories are -
- Mild disease - greater than 17,
- Moderate disease - 16 to 17,
- Severe disease - 15 to 16,
- Extreme disease - less than 15.
Answer:
generic variation helps species survive because it gives there offspring there traits to survive
Explanation: