Biology Past Questions And Answers
Which vertebra has a projection on the centrum called odontoid process?
- A) Atlas
- B) Axis
- C) Thoracic
- D) Lumber
In which of the following groups of vertebrates would the largest amount of yolk be found in the egg?
- A. Mammals
- B. Fish
- C. Amphibians
- D. Reptiles
The yellowish colored liquid component of blood that normally holds the blood cells in suspension is
- A. serum
- B. plasma
- C. water
- D. thrombocyte
Which of the following statements best describes courtship behaviors in animals?
- A. Courtship behaviors are solely performed by males to establish dominance within a social group
- B. Courtship behaviors involve displays and rituals performed by both males and females to attract a mate
- C. Courtship behaviors are primarily performed by females to attract males for mating
- D. Courtship behaviors are aggressive interactions between males competing for a female mate
which of the following practices will not maintain soil fertility?
- A. preventing soil erosion
- B. bush fallowing
- C. tendency of becoming waterlogged
- D. porosity and low water retention ability
Which of the following cell types has the least number of mitochondria?
- A. Cardiac cells of the heart
- B. Cells of the cornified layer
- C. Muscle cells of the bladder
- D. Muscle cells of the diaphragm
One common characteristic of fungi, algae, mosses and ferns is that they
- A. show alternation of generations
- B. reproduce sexually by conjugation
- C. produce spores that are dispersed
- D. possess chlorophyll in their tissues
Which of the following resources cannot be renewed?
- A. Air
- B. Petroleum
- C. Food crop
- D. Soil
Which of the following parts of the eye contains light sensitive cells?
- A. Choroid
- B. iris
- C. Retina
- D. Lens
Which of the following factors primarily affects the distribution of organisms in an ecosystem
- A. Wind speed
- B. Soil pH
- C. Temperature
- D. Day length