Biology

The structure labelled I is associated with?

A. sexual reproduction B. asexual reproduction C. bud formation D. gamete formation Correct Answer: Option B - asexual reproduction

2 years ago

Which of the following structural features are adapted for uses other than water conservation?

A. Succulent stems B. Scales in animals C. Spines in plants D. Feathers in birds Correct Answer: Option A -…

4 years ago

Complex social behaviour and organization are found mostly in?

A. insects B. birds C. reptiles D. mammals Correct Answer: Option D - mammals

4 years ago

A certain savanna grasshopper changes colour from green during the rainy season to brown during the dry season and black after dry season bush fires. The reason for these colour changes is that the?

A. grasshopper is getting older B. environmental temperature is changing C. grasshopper is avoiding predation D. grasshopper is frequently moulting…

4 years ago

The mutation theory of organic evolution was propounded by?

A. Gregor Mendel B. Hugo de Vries C. Jean Lamarck D. Charles Darwin Correct Answer: Option B - Hugo de…

4 years ago

Example of water-borne and sex linked diseases are?

A. taeniasis and malaria B. cholera and gonorrhoea C. typhoid and syphilis D. dracunculiasis and haemophilia Correct Answer: Option C…

4 years ago

The surest way to combine the best qualities of both parents in the offspring is by?

A. cross-breeding B. inbreeding C. selective breeding D. pure breeding Correct Answer: Option A - cross-breeding

4 years ago

The pollutants that contribute to the depletion of the ozone layer in the atmosphere are?

A. radioactive materials B. oxides of sulphur C. oxides of carbon D. chlorofluorocarbons Correct Answer: Option D - chlorofluorocarbons

4 years ago

A cross between an albino female and a genetically normal male will result in offspring that are?

A. all albino B. all phenotypically normal C. all genetically normal D. half albino and half normal Correct Answer: Option…

4 years ago

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,…

4 years ago