27. Which of the following describes a relationship where one species is harmed or inhibited while the other is unaffected? (A) Parasitism (B) Mutualism (C) Amensalism (D) Competition (E) Commensalism

10. Coagulation is a delicate mechanism controlling clot formation and preventing blood drainage. What kind of dietary deficiency and clotting factor deficiency would lead to defective blood clotting and hemophilia A? (A) vitamin E; factor VIII (B) vitamin B12; factor VIII (C) vitamin E; von Willebrand factor (D) vitamin B12; von Willebrand factor (E) vitamin K; factor VIII

27. Which of the following describes a relationship where one species is harmed or inhibited while the other is unaffected?
(A) Parasitism
(B) Mutualism
(C) Amensalism
(D) Competition
(E) Commensalism

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