In one minute normally the heart beats
60 times
80 times
100 times
72 times
Correct Answer :
D. 72 times
Related Questions
What are top carnivores?
biggest carnivores
tigers
all carnivorous animals
carnivores that are not eaten by any other animal
Which among the following animals has the largest Intestine?
Cow
Lion
Monkey
Tiger
Which one of the following is not an essential micronutrient for plants?
Boron
Zinc
Sodium
Copper
One of the following is often called the master gland. Which one is it?
Thymus
Islets of Langerhans
Pituitary
Thyroid
Turner's syndrome is a disease caused by
bacteria
virus
fungus
chromosomal imbalance
Best growth of plants is attained if they are supplied with
low carbohydrate and high nitrogen
high carbohydrate and low nitrogen
high carbohydrate and moderate nitrogen
equal carbohydrate and nitrogen
Niche' refers to
place of living
type of food
place of living and type of food
food and movement
Carbohydrates are mainly needed for
growth
immunity
repair
energy
The plant hormone which promotes ripening of fruits is
auxin
ethylene
gibberellin
cytokinin
The best and easy method of control of crop pests is by
crop rotation
chemicals
quarantine
biological control
Adaptation for flying is termed as
aquatic
volant
fossorial
cursorial
Fusarium causes the wilting of the cotton plants by
clogging the vessels
producing toxic substance
causing necrosis of roots
killing the leaves
The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.
Caeselpinea
Bryophyllum
Centella
None of the above
The closing and opening of the leaves of Mimosa pudica (Touch me not) plant is due to _______ movement.
chemonastic
seismonastic
thermonastic
photonastic
The heart of the human embryo starts beating in the _____ week of its development.
second
third
fourth
first
Necrosis is a symptom which is recognised by
pattern colouration on leaves
little leaves
out growth
death of tissues
The medulla oblongata encloses the
optic lobe
optic capsule
second ventricle
fourth ventricle
Coagulation of blood in vessels is prevented during normal circulation by
heparin
prothrombin
plasmogen
thromboplastin
Chromosome theory of inheritance was propounded by
Sutton and Boveri
Mendel
Muller
Beadle and Tatum
The spores of Puccinia formed on the leaves of wheat are called
Basidiospores
Ascidiospores
Uredospores
Pycnospores
The first person to observe the bacteria, protozoa and spermatozoa under the microscope was
Theodore Schwann
Matthias Schleidon
Robert Hooke
Leuwenhoek
Synthesis of nutrients by green plants is called
photo-oxidation
photo-respiration
photo-synthesis
photo-periodism
Blood is a kind of
epithelial tissue
connective tissue
nervous tissue
cartilage
Malaria is transmitted from one person to another by
bad air
flies
anopheles mosquito
culex mosquito
The nerve messages enter the cell through the
Dendrite
Axon
Cyton
Synapse
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
Cretinism is due to the disorder of the glands
Thymus
Parathyroid
Thyroid
Adrenal
The suggestion that the chromosomes are the carriers of hereditary material was first made by
Johanson
Flemming
Sutton and Boveri
Morgan
Leafy trees help in preventing
Land pollution
Water pollution
Noise pollution
Air pollution
The oldest era is
Palaeozoic
Mesozoic
Cenozoic
Proterozoic