Answer:
Of course, you could scan their driver’s license or look for signs of facial wrinkles and gray hair. But, as researchers just found in a new study, you also could get pretty close to the answer by doing a blood test.
Woman looking at herself in mirror That may seem surprising. But in a recent study in Nature Medicine, an NIH-funded research team was able to gauge a person’s age quite reliably by analyzing a blood sample for levels of a few hundred proteins. The results offer important new insights into what happens as we age.
Explanation:
For example, the team suggests that the biological aging process isn’t steady and appears to accelerate periodically — with the greatest bursts coming, on average, around ages 34, 60, and 78
Answer:
Option C, Parasympathetic nervous system stimulation resulting in airway constriction
Explanation:
Complete Question
When a client with a history of asthma takes a walk outside on a windy day with high pollen counts, she may experience an asthma attack, resulting in an increase in respiration rate and wheezing. The body's response is likely related to which pathophysiological principle?
Select one:
a. Influx of macrophages to wall of the pollen, thereby stopping the attack
b. Release of catecholamines causing blood vessel constriction
c. Parasympathetic nervous system stimulation resulting in airway constriction
d. Inhibition of glandular secretions, which causes build up of mucus in the lungs
Solution
The parasympathetic nervous system consists of cranial and sacral spinal nerves. It is responsible for doing the work of sympathetic system thereby decreasing the rate of respiration and heart. During windy climate when pollen grains are in excess, the rate of respiration needs to be higher in order to get sufficient supply of oxygen. But due to activation of parasympathetic nervous system the body tries to preserve its energy by decreasing the rate of various bodily functions and
Hence, option C is correct
Answer:
a or b I'm sorry but I know it's not c
Answer:
Potassium = Great conductor of heat and electricity
Neon = Non reactive
Boron = has properties of both metals and non metals
Barium = Malleable and highly reactive
Explanation:
Potassium = Great conductor of heat and electricity
Potassium is soft metal and has low melting point. It is white silvery luster with great heat conducting properties.
Neon = Non reactive
Neon is present in group eighteen. It is noble gas. Its outer electronic shell is completely filled that's why it is non reactive.
Boron = has properties of both metals and non metals
Boron is metalloid and behave like both metals and non metals.
Barium = Malleable and highly reactive
Barium is belong to group 2A. It is alkaline earth metal. It is highly reactive towards other elements such as oxygen, fluorine, chlorine , etc.
