In animal cells, cellular energy is produced in what organelle? a) nucleus b) ribosomes c) mitochondria d) endoplasmic reticulum (this is science)

The correct answer is C) mitochondria. In mitochondria, cellular respiration takes place and adenosine triphosphate, also known as ATP, which provides energy for biological processes, is formed.

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.

a1 = unhealthy

a2= healthy

a3= healthy