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Biology 1988 WAEC Past Questions

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11
The pigment in the malphigian layer responsible for skin colouration is known as
  • A. haemoglobin
  • B. haemocyanin
  • C. chlorocruorin
  • D. haemoerythrin
  • E. melanin
View Answer & Discuss (2) WAEC 1988
12
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
View Answer & Discuss WAEC 1988
13
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
View Answer & Discuss (1) WAEC 1988
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14
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
View Answer & Discuss (1) WAEC 1988
15
Auxins are produced in the
  • A. petiole of leaves
  • B. parenchyma of roots and shoots
  • C. epidermis of roots and shoots
  • D. apical regions of roots and shoots
  • E. sclerenchyma tissues of roots and shoots
View Answer & Discuss (1) WAEC 1988
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