Although the digestive system is primarily
responsible for the breakdown of food, this
process can be disrupted if the circulatory
system malfunctions. the best explanation for
this disruption is that
(1) human body systems interact with each
other to perform life functions
(2) the circulatory system is the control center of
the body
(3) the digestive system and the circulatory
system have many organs in common
(4) the circulatory system is responsible for the
coordination of life functions, including the
breakdown of food

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.