Question 1 of 20 2,572 total questions
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
Flame cells are the
A excretory system of worms
B excretory and respiratory systems of flatworms
C secretory syustem of flatworms
D excretory system of flatworms
The most successful group of animals in terms of diversity of species is
A mollusca
B arthropoda
C mammalia
D platyhelminthes
In which of the following organisms would glycogen be stored?
A Spirogyra
B Chlamydomonas
C Rattus
D Magnifera
In which of the following organism does a single cells performs all the function of movement, nutrition, growth , excretion, photosynthesis?
A Paramecium
B Euglena
C Amoeba
D Spirogyra
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