| Insulin and glucagon are ____ that regulate blood glucose. |
antibiotics |
| The four human blood ____ are: A, B, AB, and O. |
arteries |
| Cholera, plague, tuberculosis, and tetanus are caused by ____. |
atria (atriums) |
| The ____ are the two upper chambers of the heart. |
bacteria |
| The reproduction of bacteria can be stopped by ____. |
hormones |
| Incisors, canines, bicuspids, and ____ are types of teeth. |
molars |
| Biceps and triceps are upper arm ____. |
muscles |
| Blood travels from your heart to your legs through ____. |
types |
