Respiration and Circulation
Completion requirements
Pori drwy'r eirfa gan ddefnyddio'r mynegai hwn
Arbennig | A | B | C | CH | D | DD | E | F | FF | G | NG | H | I | L | LL | M | N | O | P | PH | R | RH | S | T | TH | U | W | Y | Y CYFAN
H
HaemoglobinA protein in red blood cells that transports oxygen. | |
HeartA muscular organ that pumps blood around the body. | |
HomeostasisThe maintenance of a stable internal environment. | |