Question

what is a fundamental element that is present in all living organisms?
helium
carbon
uranium

Explanation:

To determine the fundamental element in all living organisms, we analyze the options:

• Helium is a noble gas, not essential for living organisms.
• Carbon is the basis of organic chemistry and is present in all living things (e.g., in proteins, carbohydrates, nucleic acids).
• Uranium is a radioactive element, not fundamental to living organisms.

Answer:

B. carbon (assuming the options are labeled as A. helium, B. carbon, C. uranium)