The structure of the skin is an effective barrier against bacteria. The multiple layers of epidermis, while can be invaded by foreign organisms, has a high turnover rate which means it is constantly shedding, therefore even the bacteria is shed protecting the body. Lastly, the skin's lipids maintain an acidic pH which slows and stops growth and replication of bacteria.
Answer:
Yes a population can only handle a certain amount of people .
Explanation:
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Answer:
The six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.
Explanation:
I believe that last one is true (photosynthesis of plants)
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no but they have fins but ig thats wings to some people
