Answer:
vaccines use the killed version of the germ that causes a disease.
Explanation:
Inactivated vaccines usually don't provide immunity (protection) that's as strong as live vaccines. So you may need several doses over time (booster shots) in order to get ongoing immunity against diseases
Answer: B
Like the nervous system, the endocrine system is a regulatory system. However, instead of using electrical impulses for signaling, it produces and uses chemical signals called hormones, which travel through the bloodstream and control the actions of cells and organs.
12.6 km per hour.
1 km=100 meters
The 3 bacterial shapes and their scientific names are ....
-rod shaped-bacillus
-spherical-coccus
-spiral-spirillum
-vibrio
-spherochete
