Post Utme Biology Past Questions and Answers

Question 1131:

The xylem elements perform the function of transport, but they also help to support plants because they ____________

A. Are internally located
B. Are tubular
C. Have rigid thick wall
D. Constantly absorb water

Question 1132:

Biosphere is best described as ____________

A. All parts of the earth where life exists
B. The non-living parts of an ecosystem
C. All component of an ecosystem
D. All the members of a single species in a habitat

Question 1133:

Muscle fatigue is caused by ____________

A. Accumulation of ethanol in the muscle cells
B. Accumulation of methanol in the muscle cells
C. Accumulation of lactic acid in the muscle cells
D. Accumulation of pyruvic acid in the muscle

Question 1134:

At what stage of the meiotic prophase do the homologous chromosomes attract each other and then pair up?

A. Leptotene
B. Pachytene
C. Zygotene
D. Diplotene

Question 1135:

The process by which plants and animals are modified in structure, physiology and behavior in order to survive is known as ____________

A. Evolution
B. Adaptation
C. Succession
D. Aggregation