Answer:
Gold and silver; these two precious metals have captured a lot of attention during the last year and both printed a strong rally last month. Was this rally due to the safe haven status of gold with silver following suit, or was it bottom fishing? Who knows! Is it a good time to invest in gold and silver, after all they are both at a 4 year low? Let’s investigate this further based on the technical factors of each chart.
Gold and Silver both are still in down trends on the monthly timeframe. Last month’s rally can be considered a normal pullback on this long term basis. The price has pulled back into the monthly chart moving average sell zone, an equilibrium area from which price is likely to take another move lower. The silver monthly chart is more bearish out of the two metals with the strong resistance at around 18.50 which halted last month’s rally.
Explanation:
Answer: A and D
Explanation: pretty simple
To help the nervous system and brain develop.
Answer:
The receptors in the aortic and carotid bodies are chemoreceptors.
Explanation:
Chemoreceptors are specialized cells that are responsible for detecting and converting chemical signals into biological signals, to relay that information to the brain, where they will finally be interpreted. Among them we find the peripheral chemoreceptors, which are the aortic bodies, located along the wall of the aortic arch and innervated by the vagus nerve, and the carotid bodies, located in the neck. . Carotid bodies are stimulated by variations in the concentration of oxygen and carbon dioxide in the blood, as well as variations in blood pH. When the pH decreases the CO2 increases and the oxygen decreases, they activate the chemoreceptors to increase breathing.
Answer:
I haven't really learned about cell types but I did find this information
Explanation:
How can epinephrine have different effects on different cells? Different cells have different receptors that bind epinephrine. Different cells activate different enzymes as a result of epinephrine binding.
epinephrine induces increased vascular smooth muscle contraction, pupillary dilator muscle contraction, and intestinal sphincter muscle contraction. Other significant effects include increased heart rate, myocardial contractility, and renin release
Hope it at least helps a little :)
