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AnnyKZ [126]
4 years ago
7

Nitric oxide was discovered as a secondary messenger in the 1980s and has grown in popularity since that time. In fact, it was n

amed molecule of the year in 1992 by Science Magazine, one of the leading global scientific publications, and the Nobel Prize in Physiology and Medicine for 1998 was awarded to the scientists who discovered its properties as a signaling molecule. Add to that the link to Viagra, one of the most profitable sexual enhancement drugs on the market, and you have a molecular superstar.
Biology
1 answer:
Allisa [31]4 years ago
8 0

Answer:

The main function of viagra is to relax the muscles of the blood vessels in some areas of the body. It is used for the treatment of erectile dysfunction and for high blood pressure. The component of viagra is a competitor to the enzyme PDE5, breaking down cGMP. In the penis, blood is trapped, which results in the erection being maintained. When cGMP levels decrease, the concentration of calcium ions increases, causing smooth muscle contraction.

Explanation:

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A client is admitted to the hospital with elevated temperature, chills, cough, and fatigue. The health care provider orders a ch
Mkey [24]

Answer:

Broad-spectrum antibiotics can cause antibiotic resistance.

Explanation:

  • Antibiotics are the substances that inhibit the growth of or kill the bacteria and hence, these are used as medications for the treatment of a lot of bacterial diseases.
  • These antibiotics can either be of broad-spectrum or the narrow spectrum.
  • The broad-spectrum antibiotics are the ones that are effective against a variety of bacteria, both gram-positive and negative whereas the narrow-spectrum antibiotics are the ones that target only a specific type of bacteria.
  • Since the bacteria can mutate very fast and hence, develop antibiotic resistance, the doctors usually avoid prescribing broad-spectrum antibiotics and only use them when the causal bacteria is completely unknown.
  • Hence, in the given case the provider prescribes separate medications for both types of bacteria.
5 0
3 years ago
Calcium blood levels are very tightly regulated with the aid of parathyroid hormone and vitamin D. The statements below represen
Bas_tet [7]

Answer:

D-less calcium

Explanation:

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7 0
3 years ago
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chubhunter [2.5K]

Answer:

Three examples of fossil fuels are:

1). Petroleum

2). Coal

3). Natural gas

5 0
3 years ago
Rosalind Franklin and Maurice Wilkins took X-ray photographs of DNA that revealed the molecule was shaped like a _____. square p
Dmitriy789 [7]
DNA is a double helix shape
3 0
3 years ago
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1. Suppose that you take your boat offshore for a day of deep-sea fishing. You drop anchor at a supposed ‘hot spot’ and you noti
Mashcka [7]

The swim bladder is more or less an oval, soft-walled pouch located in the abdominal cavity, just below the spinal column. Its shape varies greatly, but the volume is constant between species, most often around 5% of body.

<h3>Day of deep-sea fishing</h3>

1. The volume of your swim bladder when you put it back in the water would be 7.5 liters.

2. The time the fish would float on the surface before the oval could restore neutral buoyancy would be a few seconds.

3. If I were a red blood cell that has just delivered its oxygen to the tail musculature of a mako shark, the route through the circulatory system to eventually reach the mako's swim bladder would be the venous route, like other fish, they have a heart with two chambers, an atrium and a ventricle, and closed circulation.

With this information, we can conclude that the volume of her swim bladder when she was put back in the water would be 7.5 liters.

Learn more about swim bladder in brainly.com/question/22849660

5 0
3 years ago
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