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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Seasonal variations of climate impact the state of an ecosystem. In areas that experience a cold season, some elements of the ecosystem change their residence or even hibernate to survive. Succession can be considered a higher state of development of the ecosystem.
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Answer:
cartilage is a flexbile tissue made of cells called chond
Explanation:
Answer:
Left ventricle
Explanation:
I think the left ventricle is propably superior and broad border of the simply because it pumps blood and other usefull products from the heart to furthest parts of the body
Missouri Compromise made provisions for federal authority in the west but prohibited the spread of human bondage.
What is Missouri Compromise?
- The Missouri Compromise Act, passed by the US Congress in 1820, admitted Missouri as the 24th state to the Union.
- Northern congressmen attempted unsuccessfully to attach amendments preventing further slaveholding after the area requested sovereignty without constraints on slavery.
- When Maine (which was once a part of Massachusetts) applied for statehood, Henry Clay brokered a deal that saw Maine admitted as a free state and Missouri admitted as a slave state.
- Slavery was subsequently outlawed in areas north of Missouri's southern boundary.
- Clay's solution highlighted the sectional divide while appearing to resolve the slavery-extension issue.
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