Biology

Which of the following statements best explains the meaning of homologous chromosomes?

A. Product of division of chromosomes B. two identical chromosomes from each parent C. chromosome arranged on spindle fibre during…

6 years ago

In an individual who is heterozygous for a particular character, the hereditary factor that is always expressed is described as?

A. allele B. sickle-cell gene C. dominant gene D. chromosome E. sex-linked character Correct Answer: Option C - dominant gene

6 years ago

The wing of a bat and that of a bird, the flippers of a whale and the fins of fish are example of?

A. adaptive radiation B. vestigial structures C. continuous variation D. convergent evolution E. divergent evolution Correct Answer: Option E -…

6 years ago

Who formulated the theory of natural selection in evolution?

A. Louis pasteur B. Robert Hooke C. Jean Lamarck D. Mathias Schlieden E. Charles Darwin Correct Answer: Option E -…

6 years ago

The phenomenon whereby some organisms with certain features get established in an environment is known as?

A. partial selection B. artificial selection C. natural selection D. mutation E. colonization Correct Answer: Option C - natural selection

6 years ago

Which of the following statements best explains the term aestivation?

A. a device for survival during a period of extreme food and water shortage B. A method of survival adopted…

6 years ago

Which of the following structures is a protective adaptive feature of the Agama lizard to terrestrial habitat?

A. Claws B. Gular fold C. Scaly skin D. Nuchal crest E. tail Correct Answer: Option C - Scaly skin

6 years ago

The adaptation for water conservation in organisms include the following except?

A. scales in fishes B. scales on leaves C. thick leaves D. spine in plants E. succulent stem Correct Answer:…

6 years ago

Which of the following limiting resources is competed for by organism in the desert?

A. Light B. Temperature C. Oxygen D. water E. Carbondioxide Correct Answer: Option D - water

6 years ago

Which of the following is not a method of conserving natural resources?

A. controlling farming practice B. Establishing forest reserve C. Establishing of parks and gardens D. Encouraging poaching in game reserve…

6 years ago