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3451
The genetic composition of an organism is termed
  • A. an allele
  • B. a cross
  • C. a genotype
  • D. a phenotype
  • E. a hybrid
View Answer & Discuss NECO 2000
3452
Which organisms are NOT autotrophic?
  • A. algae
  • B. Ferns
  • C. fungi
  • D. grasses
  • E. mosses
View Answer & Discuss (1) NECO 2000
3453
Which of the following statements is NOT true according to the first and second laws of thermodynamics ?
  • A. In all energy conversions a certain amount is always lost as heat
  • B. In any given ecosystem the energy transformations can be classified into catabolic and anabolic processes
  • C. The energy at one trophic level is the same as the next higher or the one below it
  • D. The sun is the ultimate source of energy in the universe
  • E. The total energy in an ecosystem retains constant
View Answer & Discuss (3) NECO 2000
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3454
Which of these allelic pairs represent homozygous dominant trait?
  • A. TT
  • B. Tt
  • C. tt
  • D. Bb
  • E. bb
View Answer & Discuss NECO 2000
3455
The blood vessel that supplies blood rich in digested food to the liver is the
  • A. Hepatic artery
  • B. Hepatic portal artery
  • C. Hepatic portal vein
  • D. Hepatic vein
  • E. Renal artery
View Answer & Discuss (1) NECO 2001
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