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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Answer: i dont understand it....
Explanation:
Answer:
B
Explanation:
Cooling reduces the excitement of the molecules of the DNA hence allowing the hydrogen bonds between the base pairs of the two strands to form hence the DNA is considered to anneal. Heating disrupts the hydrogen bonds and causes the two strands to dissociate.
The Earth Food Chain starts with Grass.
When eating out it is important to take some measures in order to eat healthfully. It is important to avoid fried and grilled foods when eating out. The fried foods increase the risk of several bodily disorders, such as obesity, diabetes, and many other severe conditions such as heart attack. Therefore, it is better to order broiled food when eating outside.
Hence, the correct answer is 'ordering meat dish that is grilled or broiled and avoid fried or breaded meat dishes'.