which cells of the blood form the first line of defense
Answers
Answered by
5
Answer:
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Answered by
7
Answer:
Mark the upper(my bestie) as BRAINLIEST
Similar questions