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Biology Past Questions

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76
The maize grain is regarded as a fruit and not a seed because
  • A. It is covered by a sheath of leaves
  • B. The testa and fruit wall fuse after fertilization
  • C. It has both endosperm and cotyledon
  • D. It has coleorhiza and coleoptile
  • E. The pericarp and seed coat are separated
View Answer & Discuss (6) JAMB 1979
77
Identical twins are produced under one of the following conditions
  • A. Two oval fertilized at the same time by two sperm
  • B. one ovum ferilized divides to give two embryos
  • C. one ovum fertilized, twins formed shortly before birth
  • D. Two ova fertilized by one sperm
  • E. one ovum fertilized by two sperm
View Answer & Discuss (6) JAMB 1979
78
The one-seeded fuit in which the pericarp and the seed coat have become fused together is known as
  • A. achene
  • B. samara
  • C. caryopsis
  • D. legume
  • E. drupe
View Answer & Discuss (4) JAMB 1979
WAEC offline past questions - with all answers and explanations in one app - Download for free
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
79

The major function of contractile vacuole in amoeba is?

  • A. to secrete enzyme to digest food particles
  • B. to store excess food materials
  • C. to excrete nitrogenous waste
  • D. to absorb water from the surrounding
  • E. to collect and expel water in the cytoplasm
View Answer & Discuss (5) JAMB 1979
80
Grasses grasshopper lizard snakes hawks. In the food chain, the organism which are the least in number are
  • A. grasses
  • B. grasshopper
  • C. lizards
  • D. snakes
  • E. hawks
View Answer & Discuss (6) JAMB 1979
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