Which is a way the immune system works with other body systems? a. lymph is filtered through parts of skeletal system
b. white blood cells produce mucus in nose
c. enzymes in digestive system kill pathogens
d. lymph nodes are the site of red blood cell production

Brian has a medical condition called cone dystrophy, which is a disorder of the cone cells in the eye. what symptoms would you expect brian to have? a. inability to see in the dark b. difficulty determining colors c. difficulty determining shapes and outlines d. inability to see in all light conditions