Biology

Which of the following statements about mutation is true?

A. The genotype is not affected B. The genotype is affected C. The phenotype is not affected D. It cannot…

6 years ago

Which of the following is not a means of conservation?

A. Controlling excessive deforestation B. Prevention of poaching C. Replacing harvested mature trees with seedlings D. Burning of vegetation before…

6 years ago

Conservation of wild life is necessary mainly because?

A. wild species cannot resist disease better than their domesticated species B. many predator wild animals help in control of…

6 years ago

Algal bloom depletes oxygen content of bodies of water polluted by?

A. industrial effluents B. thermal plant discharge C. raw sewage disposal D. crude oil spillage Correct Answer: Option C C.…

6 years ago

Which of the following infections is unlikely to respond to antibiotic treatment?

A. Typhoid fever B. Ring worm C. Measles D. Tetanus Correct Answer: Option C C. Measles

6 years ago

Which of the following processes does not contribute to the maintenance of the nitrogen content of the soil?

A. Decomposition B. Denitrification C. Nitrification D. Nitrogen fixation Correct Answer: Option B B. Denitrification

6 years ago

In an ecosystem the organism which changes light energy into stored chemical energy is the?

A. consumer B. decomposer C. producer D. carnivore Correct Answer: Option C C. producer

6 years ago

Which of the following organisms is well adapted for fluid feeding?

A. Cockroach B. Mosquito C. Grasshopper D. Ants Correct Answer: Option B B. Mosquito

6 years ago

The density-dependent factors that operate to regulate a population size may include the following except?

A. shortage of food supply B. fire outbreak C. spread of diseases D. increased competition Correct Answer: Option B B.…

6 years ago

Which of the following instruments is used to measure the speed of a stream?

A. Simple float B. Secchi disc C. Quadrat frame D. Rain gauge Correct Answer: Option A A. Simple float

6 years ago