Post Utme University of Calabar Biology Past Questions and Answers

Question 11:

Who formulated the theory of natural selection in evolution?

A. Gregor Mendel.
B. Jean Lamarck
C. Mathias Scheiden
D. Charles Darwin

Question 12:

Which of the following statements is not correct of respiration?

A. Gaseous exchange occurs by diffusion
B. Oxygen combines with hemoglobin in the respiratory surface
C. Carbon dioxide produced in the tissues is removed by the process of osmosis
D. There are no special organs of respiration in plants

Question 13:

Which of the following constitutes the main internal tissues of a leaf?

A. Cuticle
B. Mesophyll
C. Vascular tissue
D. Lower Epidermia

Question 14:

Which of the following is an autotrophic mode of nutrition?

A. Chemosynthesis
B. Saprophytism
C. Parasitism
D. Symbiosis

Question 15:

Which of the following structures differentiates an animal cell from a plant cell?

A. Ribosomes
B. Cell membrane
C. Chloroplast
D. Mitochondria