Mold spores have what impact on breathing?
neutral ambiguous symptoms motility positive dangerous negative uncontrolled
A B C D E F G H
Insects also have both a heart and a respiratory, or breathing, system.
a mold spore has a negative impact on breathing.
Mold spores have what impact on breathing? (A) neutral (B) ambiguous (C) symptoms (D) motility (E) positive (F) dangerous (G) negative (H) uncontrolled