Which one of the following is one of the paths followed by air or O2 during respiration in the adult male Periplaneta  americana as it enters the animal body? (a) Spiracle in metathorax, trachea, tracheoles, oxygen diffuses into cells (b) Mouth, bronchial tube, trachea, oxygen enters cells (c) Spiracles in prothorax, tracheoles, trachea, oxygen diffuses into cells (d) Hypopharynx, mouth, pharynx, trachea, tissues

Which one of the following is one of the paths followed
by air or O2 during respiration in the adult male
Periplaneta  americana as it enters the animal body?
(a) Spiracle in metathorax, trachea, tracheoles,
oxygen diffuses into cells
(b) Mouth, bronchial tube, trachea, oxygen enters
cells
(c) Spiracles in prothorax, tracheoles, trachea,
oxygen diffuses into cells
(d) Hypopharynx, mouth, pharynx, trachea, tissues
by

1 Answer

Answer :

(a) Spiracle in metathorax, trachea, tracheoles,
oxygen diffuses into cells
by

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