Breathing is when a gill converts from oxygen in water into oxygen in blood.
Hemoglobin transports oxygen in blood.
Breathing is when a gill converts from oxygen in water into hemoglobin .
Breathing is when a gill converts from oxygen in water into

(a) tiny polyps
(b) Hemoglobin
(c) salmon
(d) motility
(e) unidirectional
(f) exoskeleton
(g) heat energy
(h) epidermal