Which body system is being most directly affected by vegetables

a. excretory
b. digestive
c. endocrine
d. immune
e. nervous
f. skeletal
g. muscular
h. cardiovascular
i. respiratory

The response is the basis for vaccination. primary secondary tertiary none of the above

Which description provides the best objective summary of the article in the passage?

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.