Biology WAEC

The thoracic cavity is separated from the abdominal cavity by a sheet of muscle called?

A. pleural membrane B. intercostal muscles C. diaphragm D. pericardium E. epiglottis Correct Answer: Option C - diaphragm

4 years ago

Which of the following blood components has the greatest affinity for oxygen and carbondioxide?

A. Blood plasma B. Leucocytes C. Thrombocytes D. Erythrocytes E. Lymphocytes Correct Answer: Option D - Erythrocytes

4 years ago

The pulmonary artery carries?

A. deoxygenated blood from the right ventricles to the lungs B. oxygenated blood from the right ventricle to the lungs…

4 years ago

Which of the following processes will not introduce carbondioxide into the atmosphere?

A. Breathing B. Photosynthesis C. Respiration D. Putrefaction E. Burning Correct Answer: Option B - Photosynthesis

4 years ago

The large intercellular air spaces which penetrate the tissues of most hyrophytes provide a pathway through which?

A. carbondioxide absorbed by leaves can diffuse to the roots B. oxygen produced in the leaves can diffuse to the…

4 years ago

Which of the following is an example of reproductive adaptation?

A. Succulent stems of cactus plant B. Changing colour of chameleon C. Possession of spines by desert plants D. Neck…

4 years ago

The theory that new organs or characteristics develop in organisms when there is a need for them was postulated by?

A. Charles Darwin B. Jean Lamarck C. Gregor Mendel D. Wallace E. Louis Pasteur Correct Answer: Option B - Jean…

4 years ago

Which of the following is not true about a bacterial colony growing on an agar plate?

A. They are visible without the aid of the microscope B. Bacterial cells found in one colony often belong to…

4 years ago

Which of the following organelles are likely to be present in cells that are actively respiring and photosynthesizing?

A. Nucleoli and centrioles B. Lysosomes and ribosomes C. Endoplasmic reticulum and Golgi bodies D. Chloroplasts and mitochondria E. Food…

4 years ago

The scientist who discovered the honey-comb structure of the cell was?

A. Robert Hooke B. Felix Dujardin C. Mathias Schleiden D. Theodore Schowann E. Louis Pasteur Correct Answer: Option A -…

4 years ago