B)
Because it flows. I dunno about you, but that sounds like a liquid to me! Sorry if i'm wrong.
Answer:
a. veins and arteries
b.diaphragm
c.kidney
d.lung
e.4
f.left auricle(atrium) , right auricle(atrium)
g.left ventricle, right ventricle
h.blood plasma
i.digestive
j.buccal cavity ,saliva
k.bile
l.excretory
m.kidneys
Explanation:
The most common antibiotic for infections is penicillin.
C because a lesion is high density
