The answer is protect the body from infection by pathogens
The physical barrier is made of epithelial cells, mostly will be keratinized to increase their sturdiness further. They will impede the pathogen physically by barricading the cells, makes the pathogen could not invade deeper part of the body. Histamine and antibodies should be the role of immune cells, not epithelial.
Answer:
Superbugs are bacteria that are resistant to Antibiotics.Bacteria becomes resistant to antibiotics and carry genes that allow them to survive in harsh conditions. The infection caused by these bacterias are difficult to treat.These antibiotic resistance can be trasmitted from one bacteria to its offspring.
Explanation:
Contracting an std could affect your dream of having a future family because some stds can make you sterile and you will would never be able to have children.
The correct answer is the Galápagos Islands.
Answer:
A carbon atom can form four covalent bonds, it also bonds with other carbon atoms to form long-chain molecules of different sizes and shapes.It's electronegativity on Pauling scale is 2.55 due to which when it bonds with elements like oxygen, hydrogen the bond formed is quite strong.
Explanation: