Answer:
what are you trying to ask about?
Answer:
A. Activated B - cells divide to form memory cells.
Explanation:
The vaccine contains the dead version of the respective virus, so that virus will be inactive and it will become easy for the WBC to kill it and antibodies will be formed.
This is done because if we get infected by the virus, our body cells (WBC) will remember that how they killed the first entered virus (the dead version) and it will be easy for them to kill the active virus as they know the antibodies which were formed to kill the inactive virus.
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C. To respect natural systems
Sustainable practices describes the ecological systems that remains diverse and active in time. This ecological term essentially describes how the ecological systems are kept productive and well maintained.
Answer:
Yes (True), Receptors on nerves work by opening ion channels (sensors) in the wall of the nerve.
Answer:
The elements in each group have the same number of valence electrons. As a result, elements in the same group often display similar properties and reactivity.
