41.A flowering plants and weeds in the same pots.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

42.An egret feeding on the insects at the back of the carabao.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

43.A snake feeding on a rat.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

44.Fungi at the back of a tree.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

45.Orchid plant growing on a branch of a tree.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

46.Flea and tick on the skin of the dog.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

47.A lion feeding on a deer.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

48.Ascaris inside the man’s intestine.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

49.A butterfly and flowering plants.
A. Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism

50. A dog and a cat fed with a piece of meat
A.Competition
B. Predation
C. Mutualism
D. Commensalism
E. Parasitiism​