Cutting and layering are the methods of plant propagation usually referred to as
asexual reproduction
sexual reproduction
vegetative reproduction
gardening
Correct Answer :
C. vegetative reproduction
Related Questions
Calcium and phosphorus assimilation will depend on sufficient intake of
vitamin B complex
vitamin D
vitamin A
vitamin C
Which one of the following cells helps in storing water and food materials?
Parenchyma cell
Flame cell
Nematoblast
None of the above
An organism eating its own species is called
carnivore
detritivore
cannibal
herbivore
Decomposition of organic matter is due to
Virus
Fungi
Bacteria
None of these
The cortex of human brain normally consists of
five billion, two hundred million cells
nine billion, two hundred million cells
six billion, two hundred million cells
eight billion, two hundred million cells
The rate of growth of plants can be measured by a/an
manometer
auxanometer
photometer
thermometer
Plant diseases are spread by
insects
man
wind
All the above
Oxygen transport is a function of
White Blood Corpuscles
Red Blood-Corpuscles
Blood Platelets
Plasma
Haemoglobin is dissolved in the plasma of
frog
fish
man
earthworm
The disease Goitre is caused in persons who do not have in their diet sufficient
calcium
sodium
iodine
iron
The muscles of the heart are
striated and involuntary
striated and voluntary
smooth and involuntary
smooth and voluntary
Who was the first scientist to use an instrument for biological studies in 1665?
Robert Hooke
Schwann
Schleiden
None of the above
Cretinism is due to the disorder of the glands
Thymus
Parathyroid
Thyroid
Adrenal
Which one of the following acts as a communication system?
Blood
Nerve
Lymph
Enzymes
Hydrotropism means the growth of roots
away from water
towards water
into water
out of water
The equilibrium and co-ordination is looked after by which part of the brain?
Cerebrum
Medulla oblongata
Cerebellum
Olfactory lobes
Diabetes is caused by
fall in insulin level
increase in insulin level
eating too much sugar
decrease in glucose
The cellular and molecular control o( programmed cell death is known as
Apoptosis
Ageing
Degeneration
Necrosis
Carbohydrates are mainly needed for
growth
immunity
repair
energy
Who is called the father of modem antiseptic surgery?
Edward Jenner
Joseph Lister
Louis Pasteur
William Harvey
Viruses have
DNA only
RNA only
Either DNA or RNA
Both DNA and RNA
Fat present below the skin surface in our body acts as a barrier against
loss of heat from the body
loss of essential body fluids
loss of salts from the body
entry of harmful micro-organisms from the environment
Which among the following is not a degenerative disease?
Diabetes
Stroke
Myocardial infraction
Rabies
Dwarf plants can be made to attain their normal stature by applying
IAA
Ethylene
Gibberelins
Cytokinins
The brain is covered by
meninges
bone
skin
All the above
The heart of the human embryo starts beating in the _____ week of its development.
second
third
fourth
first
The phenomenon of summer sleep by animals is called
hibernation
aestivation
laziness
lethargy
The larva of the housefly is called
maggot
caterpillar
grub
wriggler
The bacteria that gets into our body is consumed by
RBC
Blood platelets
Plasma
Phagocytes
One of the sequences given below represents a complete metamorphosis. Which one is it?
Egg - adult
Egg - nymph - adult
Egg - larva - pupa - adult
young one adult