Chemical substances that called have effect on growth of plants are called
enzymes
catalysts
hormones
pesticides
Correct Answer :
C. hormones
Related Questions
Which among the following cows give maximum milk yields?
Jersey
Holstein
Red Sindhi
Sahiwal
Which element in chillies causes burning sensations?
Capsaicin
Cyanogen
Ammonia
Capsicum
Decomposition of organic matter is due to
Virus
Fungi
Bacteria
None of these
What ia leukaemia?
proliferation of WBC
decrease of RBC
increase of platelets
decrease of WBC
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
Organisms that feed on the excreta of other organisms are called
autotrophs
heterotrophs
coprophagous
saprotrophs
The universal donor belongs to blood group
A
B
AB
O
Which one of the following is essential for blood clotting?
RBC
WBC
Blood platelets
Lymph
Diabetes is a disease which is
contagious
non-communicable
communicable
epidemic
Which one is called anti-haemorrhagic vitamin?
A
C
E
K
Which one of the following animals stores water in the intestine?
Moloch
Camel
Zebra
Uromastix
The bird that lays the largest egg is
crow
ostrich
cuckoo
eagle
The disease Goitre is caused in persons who do not have in their diet sufficient
calcium
sodium
iodine
iron
Prions are composed largely of
DNA
proteins
RNA
None of these
The gestation period for the elephant is
10 months
15 months
22 months
30 months
Whooping cough is caused by
Salmonella
Bacillus pertussis
Variola
Vibriona
Bacteria utilising radiant energy to prepare food are
chemosynthetic bacteria
heterotrophic bacteria
photosynthetic bacteria
free living bacteria
Hormones are carried from their place of production by
ducts
blood
lymph
muscus
The scientist who discovered the blood groups is
Landsteiner
TH Morgan
William Harvey
Darwin
Kangaroo is one of the animals popularly called as
egglaying
pouched
placental
Volant
Fibrinogen is present in
lymph
liver
blood plasma
pancreas
Oxygen transport is a function of
white blood corpuscles
red blood corpuscles
blood platelets
plasma
Plague is caused by
Bacteria
Virus
Fungus
Fleas
The first person to observe the bacteria, protozoa and spermatozoa under the microscope was
Theodore Schwann
Matthias Schleidon
Robert Hooke
Leuwenhoek
The genetic code DNA is carried from the nucleus to Ribosome by
t-RNA
r-RNA
S-DNA
ATP
What is the bacterial disease in lime fruits?
Phythophthora
White rust
Citrus canker
Smut disease
Excess carbohydrates and insufficient proteins in dally diet will lead to
Kwashiorkor
Night blindness
Pernicious anaemia
Loss of hair
Who coined the term gene?
Mendel
Devries
Jacob and Monod
Johanson
Warm-bloodedness
means, animals living in warm climates
means, the warming up of blood as the temperature increases during day time
is characterised by constant body temperature
is shown by reptiles
The oldest era is
Palaeozoic
Mesozoic
Cenozoic
Proterozoic