Behaviorism is the school of thought that focuses on the external behavior , Humanism does not have a very scientific basis as behaviorism .
Osteoarthritis is the repeated use of a joint which gradually wears down
the articular cartilage.
<h3>What is a Cartilage?</h3>
These are soft connective tissues which are found between bones which
helps to ensure flexibility and reduce friction.
In most old people, these cartilages being to wear out thereby increasing
the friction between the bone joints. This leads to osteoarthritis which is
characterized by joint pain.
Read more about Osteoarthritis here brainly.com/question/10697062
Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. Cytokines such as interferons are molecules that signal neighbouring cells and induce an antiviral state in them. These cells are then primed to resist an infection with the invading virus.
Answer:yes
Explanation:If a child doesn't has bruises or cuts germs could get in and get them sick but, a vaccination would clean the germs out for a healthier life