Mutualism is the symbiosis when both are benefited !!
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.
Answer:
....I started from where you ended....
friction
velocity
net force
speed
balanced force
mass
weight
centripetal force
newton
unbalanced force
rest
force
Explanation:
TO. YOUR. BRAIN. have a nice day?
