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Disease as a Failure of Homeostasis › ViewDescribe how a vaccine protects the body from disease.
A. weakened or dead pathogen is identified by the immune system causing the production of antigens
B. weakened or dead pathogen is identified by the immune system causing the production of antibiotics
C. weakened or dead pathogen is identified by the immune system causing the production of antibodies
D. a live pathogen is identified by the immune system causing the production of antigens
Reproduction › View
In angiosperm the endosperm nucleus is
A. Triploid
B. Diploid
C. Tetraploid
D. Haploid