Question

question 10 (1 point) which of the following structures is the most complex? a a protein b mitochondria c a muscle cell d a carbon atom

Explanation:

To determine the most complex structure, we analyze the levels of biological organization:

• A carbon atom (option d) is a fundamental chemical unit.
• A protein (option a) is a macromolecule made of amino acids.
• Mitochondria (option b) are organelles (specialized structures within cells).
• A muscle cell (option c) is a complete cell, which is a higher level of organization than an atom, a macromolecule, or an organelle. Cells are the basic units of life and contain organelles, macromolecules, and atoms, making them more complex than the other options.

Answer:

c. a muscle cell