Question 1 of 20 153 total questions
Which of these allelic pairs represent homozygous dominant trait?
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
Which organisms are NOT autotrophic?
A algae
B Ferns
C fungi
D grasses
E mosses
The genetic composition of an organism is termed
A an allele
B a cross
C a genotype
D a phenotype
E a hybrid
Use the information to answer this question.
A I
B II
C I ,II ,and V
D II ,III, and V
E IV
Which ONE is not an adaptation for water conservation in plant found is arid region?
A absence of leaves
B leaves reduced to spines
C raised stomata
D sunken stomata
E thick stems
Which of these is NOT a method of asexual reproduction?
A budding
B fission
C fusion
D fragmentation
E layering
Which of these agencies do not have anything to do with conservation of natural resources?
A Family Economics Advancement Programme
B Federal Environmental Protection Agency
C Nigerian Conservation Foundation
D Nigerian Game Reserve Authorities
E World Wildlife Fund for Nature
Which of these organisms is most likely to have the least number if found within the same habitat?
A grasshopper
B hawk
C lizard
D snake
E toad
An example of sex-linked trait is
A ability to roll the tongue
B ability to taste PTC
C baldness
D blindness
E blood group
Which of these is NOT an excretory organ/organelle?
A flame cell
B kidney
C malpighian tubule
D nephridium
E spiracle
When both alleles in a heterozygous individual are fully expressed in the phenotype of the F, generation this phenomenon is described as
A co-dominance
B dominance
C incomplete dominance
D mutation
E recession
In a case of disputed paternity the most likely clue to resolving the problem is to match the ________________ of the baby with that of the father .
A blood group
B facial appearance
C finger print
D sex type
E skin color
An essential element whose deficiency in plants will result in poor growth, particularly of the roots, and is essential for cell well formation is
A calcium
B iron
C magnesium
D nitrogen
E phosphorus
Which of these is a liming factor with respect to human population size?
A emigration
B high standard of living
C immigration
D improved medicare
E natality
An example of a conditioned reflex is
A blinking of the eye-lids
B shout of exclamation
C knee jerk
D riding a bicycle
E twitching of facial muscles
Which of these traits shows discontinuous variation ?
A ability to roll the tongue
B colour of hair
C height of stem
D size of girth
E weight of organism
An instrument of measuring wind speed is called
A an anemometer
B a barometer
C a hygrometer
D a speedometer
E a thermometer
The group of micro-organisms that plays a vital role in the baking industry is
A algae
B bacteria
C fungi
D protozoa
E viruses
Which of the following agricultural practices will NOT promote soil conservation ?
A afforestation
B bush burning
C crop rotation
D manuring
E mulching
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