1
The purpose of the digestive system is to
OA allow an animal to move by supporting its muscles.
OB. break food down into useful nutrients.
OC. take in oxygen and excrete carbon dioxide.
OD. circulate blood to all the cells of the body.
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Ответ:
the number of crickets in each container
Explanation:
to participate in the experiment you will have to know the crickets in the container