Diseases in plants can be caused by
virus
bacteria
fungi
All the above
Correct Answer :
D. All the above
Related Questions
The blood of cockroach shows the following characteristics except one. Mark it.
It serves to distribute nutrient directly to every part of the body
It contains several kinds of corpuscles without haemoglobin
It collects metabolic wastes
It carries oxygen
Blood is a kind of
epithelial tissue
connective tissue
nervous tissue
cartilage
Compared to the veins, the walls of arteries are
thicker
thinner
similar
very much thinner
The cell theory of Schleiden and Schwann states that
cells reproduce by mitosis or meiosis
all cells have nuclei
cells are basic units of plants and animals
cells arise only from pre-existing cells
Which of these is most consistently observed in Vitamin B12 deficiency?
Pigmentation of skin
Red, sore tongue with capillary atrophy
Megaloblastic anemia
Absence of tendon reflexes
The Green Revolution in India owes much to
MS Swaminathan
TS Venkataraman
Norman Borlaug
Prime Minister
Nekton are those organisms
which cannot be netted
which are independent of tides and waves
which have long necks
None of the above
The study of heart is called
haematology
cardiology
pathology
nephrology
The equilibrium and co-ordination is looked after by which part of the brain?
Cerebrum
Medulla oblongata
Cerebellum
Olfactory lobes
Name the nematode which lives in lymph vessels of man.
Ascaris
Hook worm
Filarial worm
Guinea worm
The theory that cells arise from the pre-existing cells was proposed by
Nageli
Virchow
Schleiden
Muller
Which of the following crops helps in nitrogen fixation?
Rice
Wheat
Maize
Beans
Edward Jenner to find out the efficacy of vaccination used
his own body
his friend's body
a corpse
a laboratory animal
Two tall plants, each being a hybrid and carrying a recessive factor for dwarfness are crossed. What proportion of their offspring will be dwarf?
0.5
0.25
0.75
1
During dehydration, the human body is usually lost by the human body is
sugar
sodium chloride
potassium chloride
iodine
The metallic part in haemoglobin is
Copper
Molybdenum
Nickel
Iron
The disease in which blood clotting does not take place is known as
xerophthalmia
haemopoiesis
haemophilia
haemoerythrin
The animal that excretes uric acid
Monkey
Lizard
Mouse
Elephant
Plantain is
a tree
an annual herb
a perennial herb
a shrub
The amount of blood in a normal man is about
5.0 litres
2.5 litres
3.8 litres
4.7 litres
Kwashiorkar is a deficiency disease
due to poor intake of proteins
due to poor intake of carbohydrates
due to (a) and (b)
due to poor intake of lipids
The most primitive mammals are
carnivorous
herbivorous
omnivorous
insectivorous
The following disease is prevented by triple-antigen immunization
Diphtheria
Tuberculosis
Smallpox
Mumps
Which of the following is NOT a viral disease?
Chicken-pox
Influenza
Epilepsy
Measles
Maintenance of pregency is under the control of
Follicular stimulating hormone
Growth hormone
Estrogen
Progesterone
Which one of the following is both an exocrine and an endocrine gland?
Gastric glands
Pancreas
Salivary glands
Liver
Nephrons are found inside
Liver
Lung
Brain
Kidneys
Animals that feed only on dead flesh are
herbivorous
carnivorous
omnivorous
carrion-eaters
What ia leukaemia?
proliferation of WBC
decrease of RBC
increase of platelets
decrease of WBC
The bile contains the pigments
haemoglobin and haemoerythrin
biliviridin and bilirubin
bilirubin and haemocyanin
haemoglobin and biliviridin