Which of the following statements is true?

The liver releases enzymes that digest fat.
Bile is stored in the gallbladder until it is needed.
The small intestine absorbs food through villi.
all of the above

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .