All of these are first-line defenses EXCEPT .
a.
saliva
c.
antibodies
b.
cilia
d.
enzymes
ANSWER IS A.

What in scientific term why the salty popcorn causes this thirst

Which animal is a producer in this ecosystem

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.