Question 1 of 20 108 total questions
Which path does sound entering the human ear follow?
A Oval window → ossicles → ear drum
B Ear drum → oval window → ossicles
C Ear drum → ossicles → oval window
D Ossicles → ear drum → oval window
When it is cold, the blood vessels of the skin
A dilates to increase the amount of blood flowing
B constrict to reduced the amount of blood flowing to the skin
C dilate to reduce the amount of blood flowing to the skin
D constrict to increase the amount of blood flowing to the skin
The function of the structure labelled G is to
A carry out initial photosynthesis for the seedlings
B protect the young leaves from mechanical damage
C protect the young leaves from sun light
D protect the young leaves from insects pest
In H, the cotyledons are carried above the soil because
A the epicotyl grows faster than the hypocotyl
B the hypocotyl grows faster than the epicotyl
C both grow at the same rate
D the epicotyl outgrow the radicle
In the mammal, the autonomic nervous system consists of
A sympathetic and parasympathetic system
B brain and spinal nerves
C brain and cranial nerves
D spinal cord and spinal nerves
The main function of the petal of a flower is to
A attract pollination agents
B protect the flower while still in bud
C serve as landing stage for insects
D protect the inner paisr from desiccation
The bright colours of the comb and feathers in the peacock are for
A sex differenciation
B beauty
C courtship
D defence
Which of the following is TRUE of the process of conjugation in paramecium?
A Micronucleus disintegrates
B Each ex-conjugant divides only once
C Macronucleus undergoes division
D Each micronucleus divides twice
Which of the following is the correct order of the vertebrae along the spinal column?
A Axis → atlas → thoracic → lumbar → cervical → sacral
B Atlas → cervical → axis → thoracic → lumbar→ sacral
C Atlas → axis → cervical → thoracic → lumbar → sacral
D Axis → atlas → cervical → thoracic → sacral → lumbar
The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is
A haptotropism
B phototropism
C hydrotropism
D geotropism
Members of the phylum protozoa use the contractile vacuole
A to remove excess food
B for movement
C for digestion
D to remove excess water
The main function of blood in mammals is to transport
A excretory materials from tissues
B carbondioxide from lungs to tissues
C digested food from all the body tissues
D oxygen to the lungs
The end products of the digestion of fats and oils in mammals are
A maltose and fatty acid
B amino acids and glucose
C fatty acid and fructose
D fatty acids and glycerin
This lower jaw is typical of a
Which of the labelled parts is the diastema?
Osmic acid boiled with a solution of food substance gave a black precipitate. This indicates the presence of
A fats and oil
B proteins
C amino acids
D starch
Interveinal chlorosis is normally associated with the deficiency of
A magnesium
B potassium
C iron
D calcium
Manufactured food in the plant is transported through the
A xylem
B phloem
C cambium
D cortex
The butterfly is of great economic importance because
A of its use in scientific studies
B it sucks nectar from flowers
C it adds to the beauty of the enviroment
D it polllinates flowers of crops and other plants
The spores of mucor are dispersed by
A water
B wind
C insects
D explosive mechanism
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