Biology Past Questions And Answers
The factors that determine the distribution of vegetation zones are
- A. temperature, light, rain and humidity
- B. light, humidity, air and mist
- C. temperature, light, air and humidity
- D. humidity, snow, frost and dew
The type of Farming which involves raising livestock only is called
- A) Mixed farming
- B) Subsistence farming
- C) Pastoral farming
- D) Monoculture
Which of the following factors does not control population growth?
- A. Food shortage
- B. Emigration
- C. Abundance of food
- D. Predation
In insects, the structures that performs the same function as the kidney in man is the
- A. nephridrium
- B. flame cell
- C. malphigian tubule
- D. trachea
The diagram below illustrates an ecological instrument. Study it and answer the question below;
A disadvantage of the abiotic factor measured by the instrument is that it
- A. is an agent of pollination
- B. is necessary for germination
- C. leads to flooding when in excess
- D. is used for irrigation
Plants often have a waxy covering on the outside of their leaves to prevent water loss. This waxy covering probably contains mostly which organic compound?
- A. A protein
- B. A nucleic acid
- C. A carbohydrate
- D. A lipid
Angiosperms belong to the class
- A. bryophyte
- B. pteridophyta
- C. spermatophyte
- D. thallophytic
Which of the following substance from the mother's blood diffuse through the placenta into the blood vessels of the feotus?
- A. Carbon dioxide and oxygen
- B. Glycogen and starch
- C. Urea and carbon dioxide
- D. Glucose and oxygen
The essential parts of a flower are
- A. petals and sepals
- B. anther and filament
- C. stigma and style
- D. androecium and gynoecium
A new animal has been discovered in the rainforest. It is very similar in appearance to a known species, and has similar anatomy and dietary patterns; however, it cannot mate with the known species to produce viable offspring. Given only the above information, which of the following statements is correct?
- A. None of the above can be concluded from the information provided alone.
- B. The two animals represent closely related variants of the same species.
- C. The two animals are adapted to live in completely different environments.
- D. The two animals do not belong to the same species