Answer:
Because the vaccine is an antigen from living, weakened or killed microorganisms that activate the immune system and the body produces protective antibodies.
The nucleus? budding is when two cells reproduce asexually
Option C. Organisms were probably more complex during past eras.
The somatic nervous system(SNS), autonomic nervous system (ANS), and entericnervous system (ENS). The portion of the peripheralnervous system consisting ofsomatic sensory (afferent) neurons and somatic motor (efferent) neurons.
