cell
nucleus
chromosome
DNA
gene
Explanation: I’m not sure if I’m correct, but I hope this helps.
Donuts is the global leader in high-quality, top-level domains for unifying, managing and amplifying digital identity.
A cardiotonic is a drug that restores the heartbeat to its normal force and efficiency, normally prescribed to people with heart issues. Therefore, your answer would be B.
hope this helps!
