For the most part, plants and animals live in either a salt water environment OR a fresh water environment, not both. Explain this using the principle of osmosis.

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