The cephalopod mollusks have
A. a muscular foot.
B. jointed appendages.
C. tentacles.
D. two siphons.
E. setae.
Answer: C
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a. collecting duct b. urethra c. renal pelvis d. ureter e. renal vein
A plant with the genotype AABbcc is ________
A. triploid B. heterozygous for two different genes C. recessive for three different genes D. homozygous for two different genes
Why are skin grafts between identical twins more successful than grafts between more unrelated individuals?
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Which hypersensitivity disorder is the result of cell-mediated response?
A) type I B) type II C) type III D) type IV E) both type I and II