The answer is C. The strands are identical.
Ultraviolet is <span>responsible for causing sunburn </span>
Answer:
Without an oxygen atmosphere very few things could live on the early Earth. Anaerobic bacteria were probably the first living things on Earth. The early Earth had no oceans and was frequently hit with meteorites and asteroids.
Explanation:
Answer:
protiens
Explanation:
Proteins, among the most complex of all organic compounds, are composed of amino acids which contain carbon, hydrogen, oxygen, and nitrogen atoms.
Answer: The lock-and-key mechanism is usually associated with the complementary shapes of an enzyme with a single substrate wherein the lock that is being referred to is the enzyme and the substrate is the key. One right sized substrate (key) fits into the active site (key hole) of the enzyme (lock).
