A(n) _______ is a substance that helps in the chemical digestion of food.
(1 point)
Responses
epiglottis
epiglottis
enzyme
enzyme
gallbladder
gallbladder
peristalsis
enzyme
epiglottis
small intestine
nephrons
filtering the blood to remove wastes.
amino acids
The ________ is a small flap of tissue that closes the windpipe when you swallow food to keep you from choking.
(1 point)
Responses
epiglottis
epiglottis
enzyme
enzyme
gallbladder
gallbladder
peristalsis
Which of the following organs is where most nutrients are absorbed?
(1 point)
Responses
large intestine
large intestine
esophagus
esophagus
small intestine
small intestine
stomach
The kidneys contains millions of tiny filtering units called
(1 point)
Responses
urine.
urine.
villi.
villi.
peristalsis.
peristalsis.
nephrons.
The kidneys have the important job of
(1 point)
Responses
reabsorbing water into the bloodstream.
reabsorbing water into the bloodstream.
filtering the blood to remove wastes.
filtering the blood to remove wastes.
breaking down food mechanically.
breaking down food mechanically.
producing bile to help digest fats.