<span>Basically, the body needs to know what it is defending against. Your body can still (usually) fight off infection, even without an immunization, but it takes longer. Basically, your body creates cells with a receptor for a specific disease. When this cell finds the disease it is programmed for, it will send out signals to the "killer" cells to come and kill it. If your body doesn't have the "seeker" cells, it can't fight off the infection until it does. The opposite end are autoimmune diseases, where your immune system starts attacking itself.
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Answer:
The statements can be classified as follows:
Summer is wetter and warmer than winter. Climate
A hurricane is likely to reach southeast Florida this afternoon. Weather
The air today is more humid than it was yesterday. Weather
The coldest month is usually January. Climate
On a tall mountain, temperatures tend to become colder with increasing elevation. Climate
No rain is likely to fall for the next week. Weather
Answer:
Seeds are the result of plant reproduction. ... When pollen lands on the flower's stigma, it germinates and forms a pollen tube, which then quickly grows towards the plant's ovary. Once it finds an ovule, the pollen tube bursts to release sperm cells, which fertilize the ovule and initiate seed formation.
Explanation:
club mosses mosses ferns horsetails.
