what causes allergies?
What will be an ideal response?
overproduction of IgE and the absence of parasites in our environment (high TH2/low TH1)
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Escherichia coli O157:H7 is a major cause of hemorrhagic colitis in the United.States.
Answer the following statement true (T) or false (F)
The ____ is an accessory system of vessels and organs that helps balance the fluid content of the blood and surrounding
tissues.
a. circulatory system b. non-circulatory system c. accessory vessel system d. lymphatic system e. heart
Yeast are
a. single-celled fungi. b. multicellular plants. c. single-celled plants. d. single-celled protists. e. multicellular fungi.
The endocrine system functions in
a. conduction. b. contraction. c. hormonal control of the body. d. protection against disease. e. cell production