Question 1 of 20 5,032 total questions
In terms of evolutionary trend, which of these invertebrates evolved first?
A Annelida
B Arthropoda
C Coelentrata
D Platyhelminthes
E Protozoa
Which of the following is NOT a type of finger print?
A arch
B compound
C loop
D simple
E whorl
Cotton is an example of a/an crop.
A fibre
B food
C latex
D oil
E cereal
Which of the following is NOT a transmissible character?
A dimple cheek
B ability to roll tongue
C colour blindness
D sickle-cell anaemia
E big muscles of a boxer
The function of the ribosomes is the
A absorption of carbon dioxide from the air
B control of all the vital activities of the cell
C provision of energy for cellular activities
D synthesis of secretory products
E synthesis of proteins and enzymes
All of these are vertebrates EXCEPT
A lizard
B rat
C starfish
D tilapia fish
E toad
In which of the following blood vessels does exchange of materials occur
A arteries
B arterioles
C capillaries
D venules
E veins
An ovary with ovules arranged along its walls is said to have ------------ placentation.
A axile
B central
C free central
D marginal
E parietal
Maximum and minimum thermometer is used for measuring
A atmospheric pressure
B highest and lowest amount of rainfall in habitat
C highest and lowest temperature of the day
D light intensity
E relative humidity
The enzyme ptyalin acts in the
A large intestine
B mouth
C oesophagus
D small intestine
E stomach
Which of the following deaminates excess amino acids?
A Duodenum
B Ileum
C Kidney
D Liver
E Pancreas
Which of the following is NOT an application of variation?
A adaptation for survival
B blood transfusion
C crime detection
D determination of paternity
E marriage counseling
The fluid in the inner ear is called
A aqueous humour
B endolymph
C lymphocyte
D perilymph
E vitreous humour
In savanna trees, thick corky bark is an adaption for
A absorbing water
B conserving water
C enhancing transpiration
D reducing transpiration
E resistance to bush fire
Mycelium is a characteristic feature of
A bacteria
B hydra
C moulds
D Mosses
E yeasts
Intestinal juice contains the following enzymes EXCEPT
A erepsin
B lipase
C maltase
D sucrase
E trypsin
Under secretion of thyroxine before maturity cause
A cretinism
B gigantism
C goiter
D myxoedema
E obesity
Which of the following eye defects can be corrected with a bi-focal lens?
A Astigmatism
B Cataract
C Hypermetropia
D Myopia
E Presbyopia
Soil factors in an ecosystems are referred to as
A biotic
B climatic
C edaphic
D physiographic
E topographic
Which of the following factors does NOT affect photosynthesis?
A carbon (iv) oxide
B light intensity
C relative humidity
D soil water
E temperature
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