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Waec Biology 1988 Past Questions and Answers

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Waec 1988 Biology Past Questions

Question 11:


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 the need for water excretion
C. If there is excess intake of water, dilute urine is expected
D. If there is a shortage of water in the body the volume of the urine produced is decreased
E. In the presence of antidiuretic hormone dilute urine is produced


Question 12:


The pigment in the malphigian layer responsible for skin colouration is known as

A. Haemoglobin
B. Haemocyanin
C. Chlorocruorin
D. Haemoerythrin
E. Melanin


Question 13:


Co-ordination is achieved in the body of mammals through the action of the

A. Endocrine and nervous systems
B. Skeletal and nervous systems
C. Muscular and nervous systems
D. Circulatory and nervous systems
E. Skeletal, muscular and nervous system


Question 14:


Which of the following statements is correct of hormones? Hormones are

A. Secreted into the blood through ducts
B. Secreted directly into the blood streem
C. Inactive chemical substance in the blood stream
D. Non-specific in their mode of action
E. Secreted at the site of the needed organ


Question 15:


The pituitary is called 'master gland' because

A. It is locatd in the brain
B. Its secretion are the more numerous than those of the other gland
C. Its secretion controls the other glands
D. It is the only organ that produces hormone
E. It regulates muscular movements






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