23. Scurvy is caused by the deficiency of which vitamin? Vitamin B12
Vitamin B6
Vitamin C
Vitamin E

Explain what you know about the cause of mental illnesses.

Aperson who is overweight over his or her ideal weight.

What link in the chain of transmission is described in the paragraph? sarah has been eating and sleeping poorly. she was just diagnosed with pneumonia. tests showed the illness was caused by streptococcus pneumoniae. in the chain of transmission, sarah is the (blank) , and streptococcus pneumonia is the (blank).