Plasmodesmata in plant cells are most similar in function to which of the following structures in animal cells?
a. peroxisomes d. extracellular matrix
b. desmosomes e. tight junctions
c. gap junctions
c. gap junctions
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Incompatibility in the Rh blood system can result in hemolytic disease of the newborn. The following
combination poses the greatest risk:A. Rh positive mother, Rh negative fetus B. Rh positive father, Rh negative fetus C. Rh negative mother, Rh positive fetus D. Rh negative mother, Rh negative fetus E. Rh positive mother, Rh negative father
Vitamin K is required for
A) proper kidney function. B) blood clotting. C) night vision. D) energy metabolism. E) collagen synthesis.
Normal skin microbiota are able to grow on the skin because they can thrive in the presence of
A) sebum. B) salt. C) keratin. D) sebum and salt. E) sebum, salt, and keratin.
Immunization for ________ may reduce the incidence of otitis media and sinusitis
A) Mycoplasma pneumoniae B) Mycobacterium tuberculosis C) Propionibacterium acnes D) Corynebacterium diphtheriae E) Streptococcus pneumoniae