Why are nutrients needed for living things? describe the difference between living and nonliving things. ( no stupid or silly answers) ((2-3 sentences )

All of these things can block a bronchus and cause collapse of a lung except

2.) insulin is needed to your cells take in sugar from your blood. after you eat a candy bar, will your insulin gene be expressed or repressed? 3.) all cells have the same dna, and they all make the same proteins. true or false? the answers are 2.) expressed3.) false

Explain the purpose of a molecular clock and the properties that a section of protein must have to be used in this way.