Which modern-day disease did Leonardo da Vinci describe during the Renaissance?

A. kidney failure
B. ventricular septal defect
C. coronary vascular occlusion
D. liver cirrhosis

communicate with the patient and explain every step before proceeding to do so

yes

explanation:

vvbbjcgv guy gu ch vvg

ay

how are you

wyd

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.