haha
chemical barrier
chemical barrier
it is a chemical barrier because it produces tears that are chemicals. also- for your information, skin is a physical barrier along with the nose and mucus and cilia. sebum and stomach acid are chemical. :D
a prezygotic barrier
The Activation Energy.
There are many types of barriers of communication for example; language barrier, physical barrier, emotional barrier, listening barrier, cultural barrier, gender barrier etc
cuc
Mountains
The Great Barrier Reef is a coral reef ecosystem.
Yes, mucus acts as a chemical barrier by trapping and neutralizing pathogens, preventing them from entering the body. The mucus contains enzymes and antibodies that can help fight off infections and protect the body's tissues.
which is an example pf chemical large
The dugong is an example of a primary consumer in the Great Barrier Reef.