Question 1 of 20 351 total questions
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
Which structure of the mammalian ear when removed will affect the maintenance of balance?
A auditory canal
B ear ossicles
C pinna
D semi-circular canals
E tympanium
Which one is NOT an excretory product of man?
A carbon(iv)oxide
B oxygen
C nitrogenous wastes
D salts
E respiration
The most likely mode of an organism that possesses attachment structure, thin outer surface layer and absence of an elaborate digestive tract is
A Autotropic
B holophytic
C parasitic
D saprophytic
E symbiotic
What is the result of placing a red blood cell in a hypertonic solution ?
A crenation
B haemolysis
C osmosis
D plasmolysis
E wilting
Two identical twin boys had different finger print. This proves that
A finger print is a sex-linked character
B the genotypes of the twins are similar
C the phenotypes of the twins are similar
D there are morphological variations
E there are physiological variation in the twins
The part of the fruit which serves a protective function is called
A endocary
B epicarp
C mesocarp
D pericarp
E testa
Modern method of classification of living things is based on similarity of?
A colour
B habitat
C shape
D size
E structure
Which of the following is NOT a natural source of energy ?
A coal
B electricity
C food
D sun
E water
An essential with the dental formula I 0/3 : C 0/1 : P 3/3 : M 3/3 is most likely adapted for ___________ nutrition .
A carnivorous
B herbivorous
C holophytic
D ominivorous
E parasitic
The release of sperms through the urethral opening into the vagina is called?
A copulation
B ejaculation
C fertilization
D spermatogenesis
E urination
Which of these statements is NOT an idea contained in Lamarck’s theory of evolution.?
A acquired characters are inheritable
B changes in the environment result in corresponding changes in the species
C environmental changes cause the organism to acquire new structures as an adjustment to a new prevailing environment
D organisms develop specialized characteristic by use and disuse of organs
E organisms tend to an increase in number at an exponential rate
Lianas is to tropical rain forest as an extensive root system is to ---------------- habitat
A afro-alpine
B estuarine
C fresh - water
D grass-land
E marine
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