Why is chemistry important for the study of living things? a. it shows scientists how matter in living things cannot be altered. b. it scientists understand living things and life processes at the molecular level. c. it scientists classify living things by size and mass.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

The ruiz family is exchanging euros for us dollars. the exchange rate is 1 euro equals 1.35261 usd. since the ruiz family knows that usd are stated to the nearest hundredth of a dollar, they used the conversion ratio

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated