The skin and mucous membranes provide living things with physical and chemical barriers against invasion of microbes. These membranes are part of the immune system.
The enzyme called the lysozyme acts as both a chemical and physical barrier against pathogens. This enzyme acts like an antibiotic by killing bacteria.
There are two natural barriers that inhibited invasion but did not totally prevent it. They are the Sahara Desert to the west & the Mediterranean Sea to the north.
Chemical Invasion was created in 1987-10.
Because the high temperature kills the microbes.
Natural barriers are geographical features that provide obstacles.
One of japans natural barriers is that japan is very mountainous. This could also be good for japan in case of a foreign invasion.
Some barriers were the surround city there were three ways and side that India had because of being surrounded by water on 3 sides there barriers would stop invasion THis was Luis who gave this answer
Bannas apples and weewees
there were no geographical, or natural, barriers-the land was flat-it was easy for invaders to come in and attack Mesopotamia
Dry rot is a type of funal invasion against wooden structures.
The Sahara Desert was not a geographic barrier that made invasion of the Indian subcontinent more difficult. Geographical barriers like the Himalayas, the Thar Desert, and the Indian Ocean limited access and made invasion challenging.
China is one of the world is largest countries. It is located in eastern Asia. Like India, China is surrounded by natural barriers. Mountains and deserts lie to the north, south, and west of China. To the east lies the Pacific Ocean. Natural barriers helped to protect ancient China from invasion. The barriers also limited China's contacts with other civilizations.
there are alot of educated people in india who are fluent in english the subcontinent has fewer natural barriers to invasion than east asia