Biology

The brain and the spinal cord make up the?

A. pheripheral nervous system B. automatic nervous system C. central nervous system D. somatic nervous system E. sympathetic nervous system…

6 years ago

The bicuspid valve is located between the?

A. left auricle and left ventricle B. aorta and left ventricle C. superior vena cava and inferior vena cava D.…

6 years ago

Double fertilization is said to occur in flowering plants because?

A. two embryos are formed B. one egg is fertilized twice C. two sperms fertilize each egg D. one embryo…

6 years ago

The ability of organisms to maintain a constant internal environment is known as?

A. diuresis B. endosmosis C. plasmolysis D. dialysis E. homeostasis Correct Answer: Option E - homeostasis

6 years ago

Which of the following statements on urine production is not correct?

A. Concentrated urine is produced under the control of antidiuretic hormone B. The total volume of urine produced depends on…

6 years ago

Deamination is the process during which?

A. excess amino acid is broken down into ammonia and keto acid B. fats and oil are converted into an…

6 years ago

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

6 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

6 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…

6 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

6 years ago