Astudent hypothesized that drinking tea would cause an increase in pulse rate. he measured his pulse
20 minutes after drinking a glass of tea. it was 86 beats per minute. state one error in the experiment.

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.