Answer:
The spread of many viral diseases can be prevented by hygienic factors such as efficient sanitation facilities, effective waste disposal, clean water, and personal cleanliness. Active immunization by vaccines (antigen-containing preparations that elicit the synthesis of antibodies and thus immunity) has been useful in preventing common epidemics caused by acutely infectious viruses.
Explanation:
Mark as brainliest please
Answer:
The flu virus mutates
Explanation:
We need a new vaccine for each new strand of a flu virus
Answer:
<em>The zodiacal sign of Taurus does not coincide with the constellation of Taurus. It is a continuation of the sign of Aries and represents the second 30 degrees of the zodiacal circle. The sign of Aries represents the beginning of spring and with it the beginning of life, while Taurus is a fixed sign that continues what Aries has started. Life is in full bloom in the sign of Taurus.
</em>
<em>
</em>
<em>The stars in Taurus constellation host two open clusters, the Pleiades and the Hyades and are mostly located at the end of the sign of Taurus and the beginning of the zodiacal sign of Gemini. In the Early Bronze Age it marked the location of the Sun during the spring equinox, just like the constellation of Aries represented the equinox over 2000 years ago. The constellation of Taurus was linked to it 5000 to 1700 BC, before the precession of the equinox moved our perspective to the sign of Aries.</em>
Answer:
Biotic Factors: Low Shrubs (sedges, reindeer mosses, liverworts, and grasses), Crustose and Foliose Lichen, Herbivores (lemmings, voles, caribou), Carnivores (arctic foxes, wolves, polar bears), Migratory Birds (ravens, snow buntings, falcons, loons), Insects (mosquitoes, flies, moths, grasshoppers), Fish
Explanation:
A group of compounds that pass electron from one to another via redox reactions coupled with the transfer of proton across a membrane to create a proton gradient that drives ATPsynthesis. It is located in the inner membrane of the mitochondria.
