Question 1 of 20 5,032 total questions
Which of the following is a biotic factor that affects population?
A Predator
B Salinity
C Space
D Temperature
E Water
The following are types of finger prints EXCEPT
A arch
B compound
C loop
D simple
E whorl
The developing embryo is attached to the mother’s uterus by
A amnion
B blood vessels
C placenta
D umbilical cord
E uterine cavity
A situation in which the African king fish encases itself in a cocoon, mud and mucus until the next rainy season is called
A adaptation
B aestivation
C diapause
D dormancy
E hibernation
A woman removed a hot aluminium pot with her bare hand and suddenly throws it down. What type of action has taken place?
A Conditional
B Instinctive
C Involuntary
D Learned
E Voluntary
Which of the following is NOT found in animal cell?
A Chloroplast
B Endoplasmic reticulum
C Golgi apparatus
D Mitochondria
E Nucleus
The following are associated with succession EXCEPT
A changes in species composition
B competition among organisms
C decrease in number of organisms
D diversity of organisms
E habitat change
The following are involved in reflex action EXCEPT
A brain cells
B intermediate neuron
C motor neuron
D receptor
E sensory neuron
The following are kidney diseases EXCEPT
A diuresis
B Hepatitis
C kidney stones
D nephritis
E oedema.
The dental formula i 3/3, c 1/1, pm 4/4, m 2/3 represents that of a
A Cat
B Dog
C Man
D Rabbit
E Sheep
Which of the following is an anabolic process
A Excretion
B Fermentation
C Photolysis
D Photosynthesis
E Transportation
The order of evolution trend in plants is
A Bryophyta, Thallophyta, Pteridoiphyta and Spermatophyta
B Thallophyta Bryophyta Pteridoiphyta and Spermatophyta
C Spermatophyta, pteridophyta, Bryophyta and Thallophyta
D Bryophyta, Pteridophyta, Spermatophyta and Thallophyta
The accepted concepts for the theory of Natural Selection does not include
A tendency for organisms to over produce
B struggle for existence
C survival of the fittest
D use and disuse of body parts
Which of the following occurrences cannot be taken as a direct observation of natural Selection in recent times?
A Industrial melanism in moths
B Selective breeding in cattle
C Insecticide resistance of some mosquitoes
D Development of long necks in giraffes
Which of the following statements is not true of the worker termite? They
A Build and repair nest
B produce enzymes to digest cellulose
C search for food to feed the colony
D look after the nymph
If red is dominant to white and homozygous red pea-plants are crossed with homozygous white pea-plants, the first filial generation will have
A red flowers, 2 white flowers
B 4 red flowers
C white flowers
D 4 pink flowers
The resemblance of a palatable insect to a poisonous insect is an example of
A a chemical deterrent to a predator
B an escape from the predator camouflage
C an escape from the predator by mimicry
D a defense against the predator by warming coloration
Which of the following diseases is commonly observed in human males and is sex-linked?
A Beriberi
B Down’s syndrome
C Sickle-cell anaemia
D colour blindness
What of the following occurrences is not a feature of meiosis?
A Formation of four haploid cells
B Two successive nuclear cell division
C Pairing of homologous chromosomes at prophase
D Formation of two diploid cell
What does the chemical composition of the genetic material of all living organisms consist of?
A Deoxyribonucleic acid
B Adenosine diphosphate
C Adenosine triphosphate
D follicle stimulating hormone,
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