The phenomenon of summer sleep by animals is called
hibernation
aestivation
laziness
lethargy
Correct Answer :
B. aestivation
Related Questions
The theory of use and disuse was used to explain evolution by
Lamarck
Darwin
De Vries
Wallace
Those small organisms which float on the surface of water are called
Necton
pH indicators
Plankton
Benthos
The function of ribosomes is
Secretion
Excretion
Power house of the cell
Protein synthesis
The cellular and molecular control o( programmed cell death is known as
Apoptosis
Ageing
Degeneration
Necrosis
What are the symptoms of Xeroph-thalmia?
eye weakness
dry skin and night blindness
nervous break down
All the above
Antisnake venom is prepared by
Pasteur institute
Hoffkine's institute
Birla's institute
Indian Science Institute
Vitamin D is manufactured in a healthy human being by the action of _______ on the skin and absorbed in the blood stream.
ozone
radium
moonlight
sunlight
Spontaneous generation signifying the development of living organisms from non-living has been termed
Biogenesis
Abiogenesis
Cosmozoic
Catastrophism
Plants grown in darkness show
stout stem
long internodes
bigger leaves
no growth at all
The grey matter of the brain is so coloured because of the concentration of
nerve cells
a pigment
nerve fibres
melanin
Which of the following diseases is considered as completely eradicated from India, as no case of the same has been reported in last one year?
Polio
Tuberculosis
Cancer
Swine flu
The spider spins its web from a liquid secreting from its
posterior silk gland
posterior abdomen glands
mouth
salivary glands
Which one of the following is caused by the expression of a recessive gene present on sex chromosome?
Rheumatism
Nervous shock
Muscular dystrophy
Cerebral haemorrhage
Turner's syndrome is a disease caused by
bacteria
virus
fungus
chromosomal imbalance
Necrosis is a symptom which is recognised by
pattern colouration on leaves
little leaves
out growth
death of tissues
Which of the following is a good and rich source of vitamin 'C'?
Milk
Radish
Mango
Lemon Juice
Athlete's Coot is the common name for the fungal disease
Tinea pedis
Tinea cruris
Tinea corporis
Tinea capitis
What do you mean by lentic biota?
Plants and animals in lakes and ponds
Plants and animals in forest
Plants and animals in sea water
Desert plants and animals
In movable joints the tips of the bones are covered with
hyaline cartilage
calcified cartilage
elastic cartilage
fibrous cartilage
Scurvy is a disease caused by the deficiency of vitamin.
A
B
C
D
Which among the following vitamins is considered to be a harmone?
A
B
C
D
Timberline shows
a line of trees
the limit of the forest
annual rings
height of trees
The disease in which blood clotting does not take place is known as
xerophthalmia
haemopoiesis
haemophilia
haemoerythrin
Biocatalysts are
hormones
vitamins
enzymes
pheromones
The hormone that contains iodine is
Prolactin
Vasopressin
Thyroxine
Adrenalin
Which one of the following was probably absent in the atmosphere at the time of origin of life?
Ammonia
Oxygen
Hydrogen
Carbon
The study of heart is called
haematology
cardiology
pathology
nephrology
Who first observed the plasma membrane?
William Seifriz
Schwann
Palade
None of the above
The waste product In the urine of man is
urea
uric acid
ammonia
non-nitrogenous
The eland having endorine as well as exocrine function is
Adrenal gland
Thyroid gland
Pituitary gland
Pancreatic gland