Answer:
True.
Explanation:
Antigen may be defined as the chemical that has the ability to evoke the and immune response and can harm the living organisms. The specific antibody are produced against the immune response.
The antigens has evolved different mechanisms to prevent themselves from them the immune system of the host. The antigenic shift is the most common change that might occur in viruses that helps the antigen to protect itself by changing its genetic material. No anti viral drugs are available for the viruses.
Thus, the answer is true.
Polar cell: - occur 60 and 90-degrees from the equator, near the north and south poles. - associated with high pressure zones and low precipitation. what is the interaction between Ferrell and Polar cell circulation?
It depends where is located or how is the health of a person, animal or thing
HpPE THIS HELPS!
<span><span>Type of natural gas service
Type of customer
Volumetric Charge
</span><span>
Single-family home or apartment with its own meter year-round
(12-month)$0.0559 per therm </span><span>Seasonal* (6-month)<span>$0.0559 per therm</span></span></span>
