The closing and opening of the leaves of Mimosa pudica (Touch me not) plant is due to _______ movement.
chemonastic
seismonastic
thermonastic
photonastic
Correct Answer :
B. seismonastic
Related Questions
The function of connective tissue is
to hold the other tissues together
to facilitate diffusion
to help transportation of dissolved material from capillaries to epithelial cells
protection
The disease in which blood clotting does not take place is known as
xerophthalmia
haemopoiesis
haemophilia
haemoerythrin
Plants grown in darkness show
stout stem
long internodes
bigger leaves
no growth at all
Kwashiorkor' is caused by deficiency of
carbohydrates
proteins
fats
vitamins
The buffer substance in blood is
Calcium carbonate
Carbon dioxide
Sodium bicarbonate
Ammonia
Bacteria utilising radiant energy to prepare food are
chemosynthetic bacteria
heterotrophic bacteria
photosynthetic bacteria
free living bacteria
The suggestion that the chromosomes are the carriers of hereditary material was first made by
Johanson
Flemming
Sutton and Boveri
Morgan
Timberline shows
a line of trees
the limit of the forest
annual rings
height of trees
Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.
vitamin A
vitamin B
vitamin C
vitamin E
Hydrotropism means the growth of roots
away from water
towards water
into water
out of water
The biologist who believed in the spontaneous creation of microorganisms was
Leuwenhock
Needham
Spallanzeni
Pasteur
Injection of insulin causes
increase in glucose in blood
decrease in glucose in blood
increase in blood pressure
decrease in blood pressure
Decomposition of organic matter is due to
Virus
Fungi
Bacteria
None of these
Diabetes is caused by
fall in insulin level
increase in insulin level
eating too much sugar
decrease in glucose
Leaves Call off branches In the winter because of
fall in atmospheric pressure
completion of the duration of life of the plant
formation of separation (absciss layer) just outside the cork
shortening of day time
The country's first 'brain bank' that can store up to 300 human brains has been opened at
Alleppey
Bengaluru
Bhubaneshwar
Mumbai
Milk fever in cows occurs due to lack of
Phosphates
Calcium
Iron
Iodine
Which one of the following animals stores water in the intestine?
Moloch
Camel
Zebra
Uromastix
Nucleus was first discovered by
Porter
Robert Brown
Palade
None of these
The tallest tree in the world Sequoia™ is found in
UK
USA
former USSR
China
Oparin is known for his hypothesis on
origin of species
origin of life
one germ one disease
one gene one enzyme
Who was the first scientist to use an instrument for biological studies in 1665?
Robert Hooke
Schwann
Schleiden
None of the above
Blood plasma from which fibrinogen is removed is known as
serum
blood concentrate
lymph
antibody component
Tse-Tse fly is the vector for
malarial parasite
try peorosoma
piroplasm
microfilaria
The theory of 'jumping genes' was propounded by
Gregor John Mendel
Thomas Hunt Morgan
Barbara McClintock
Watson and Crick
Riboflavin is otherwise known as
vitamin B-complex
vitamin B2
vitamin A
vitamin E
The condition in which there is abnormal decrease of white blood corpuscles is known as
leukaemia
leucoderma
leukopenia
anaemia
Lecuminous plants are recommended for rotation of crops because they
kill harmful insects
require little amount of water
help in Nitrogen fixation
are cash crops
Scrub jungle Is characterised by
heavy rainfall
no rainfall
poor rainfall
none of the above
The science of improving the hereditary qualities of future generations of mankind is referred to as
genetics
eugenics
epigenesist
epistasis