✅ Correct Answer: Transportation of oxygen
Source: This question is taken from the Everyday Science
✅ Correct Answer: Iron
✅ Correct Answer: smallest particle of an element which can undergo a chemical reaction
✅ Correct Answer: to remove waste from blood
✅ Correct Answer: Mercury
✅ Correct Answer: Satellite
✅ Correct Answer: radio active gas
✅ Correct Answer: To remove waste product from the body
✅ Correct Answer: Cobalt
✅ Correct Answer: acellular
✅ Correct Answer: A class of nucleic acids