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forsale [732]
3 years ago
12

The common flu vaccine provides protection against the influenza virus. However, this particular vaccine must be given on a seas

onal basis in order to provide proper protection. What aspect of the influenza virus makes lifelong immunization impossible?
Health
1 answer:
densk [106]3 years ago
7 0

Answer:

Viruses determines the border line between the living and non living organisms. Viruses always requires a host to show the characteristics of the living organism.

Virus may also acts as pathogen for the human being. The virus has the ability to change evolve their genetic material rapidly. In case of the immunization of the influenza virus, virus might evolves quickly for the particular one vaccine and helps in providing long term protection.

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Alinara [238K]

The factors that can affect the amount of urine excreted everyday include the following:

1. Blood glucose level. Also known as hyperglycemia, high levels of sugar in the blood will trigger frequent urination.

2. Blood pressure. The kidneys act to regulate blood pressure in the body by increasing or decreasing the amount of urine produced.

3. Salt. A high salt diet causes fluid retention and subsequently increased urination.

4. Alcohol.  Alcohol consumption reduces production of the hormone vasopressin responsible for re-absorption of water back into the blood stream. When this hormone is not being produced as normal, fluids freely fill up the bladder leading to frequent urination.

5. Exercise (sweating)

6. Temperature of the environment

7. Level of fluid intake.

3 0
3 years ago
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When the skin is exposed to ______, the skin produces a molecule that is turned into vitamin d.
Aleks04 [339]

When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.

Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.

The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.

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8 0
2 years ago
Which is a way that stress can negatively affect
aev [14]

Answer: It can increase blood pressure.

Explanation:

6 0
3 years ago
What has more calories sugar or oil?
Anvisha [2.4K]

The question only makes sense if you specify that
you're talking about the same amount of each.

Olive oil . . . . . 120 calories / Tablespoon
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In equal volumes, olive oil has a little more than
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Sesame oil, soybean oil, almond oil, canola oil, corm oil,
cottonseed oil, flaxseed oil, grapeseed oil, palm oil,
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6 0
3 years ago
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How many calories are there in a small apple?
gladu [14]
There are about 78 calories in a small apple.
5 0
3 years ago
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