The biogenetic law was proposed by
Alfred Russel Wallace
Charles Darwin
Ernst von Haeckel
Lamarck
Correct Answer :
C. Ernst von Haeckel
Related Questions
Whale reproduces by
ovipary
vivipary
ovovivipary
fission
The two German scientists who proposed the 'cell theory' were
Mendel and 'Darwin
Theodore Schwann and Matthias Schleiden
Virchow and Purkinje
porter and Palade
The universal recipient belongs to blood group
A
B
AB
O
Vitamins A and C are predominantly present in
brinjal
lady's finger
potato
tomato
Cancer cells are more easily damaged by radiation than normal cells because they are
different in structure
non-dividing
starved of nutrition
undergoing rapid division
The part of the brain which is responsible for intelligence is
cerebrum
opthalmic
cochlea
semicircular canals
Which among the following is a balanced fertiliser for plants?
Urea
Ammonium Sulphate
Nitrates
Compost
The bone cells are connected with each other by
Haversian canal
canaliculi
capillaries
matrix
The spider spins its web from a liquid secreting from its
posterior silk gland
posterior abdomen glands
mouth
salivary glands
Plant diseases are spread by
insects
man
wind
All the above
The animal that excretes uric acid
Monkey
Lizard
Mouse
Elephant
Under the immunisation programme's Govt. of India is providing vaccination to prevent some vaccine-preventable diseases. Which of the following is NOT one of them?
Tuberculosis
Diphtheria
Tetanus
Plague
Pearl is secreted by the __________ of the pearl oyster.
foot
mantle
gills
None of these
The universal donor belongs to blood group
A
B
AB
O
The disease in which blood clotting does not take place is known as
xerophthalmia
haemopoiesis
haemophilia
haemoerythrin
The theory of use and disuse was used to explain evolution by
Lamarck
Darwin
De Vries
Wallace
Blood platelets are found in
all vertebrates
all chordates
mammals only
birds and mammals
Legumes are highly nutritious because they are rich in
starch
oils
fat
protein
In phototropism, auxins
Promote growth of cells
Inhibit cell division
Inhibit growth of cells
Stimulate differential growth of cells
The amount of blood in a normal man is about
5.0 litres
2.5 litres
3.8 litres
4.7 litres
The artificial kidney is a
machine
transplant
another's kidney
other kidney form same body
Modern classification of the living world recognise ___________ kingdoms.
two
three
four
five
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
An inherited characteristic which does not appear in one generation but can appear in the next is called
dominant
recessive
homozygous
heterozygous
Heart is made up of
nonstriated muscle
cardiac muscle
connective tissue
nervous tissue
Which one of the following is both an exocrine and an endocrine gland?
Gastric glands
Pancreas
Salivary glands
Liver
The cortex of human brain normally consists of
five billion, two hundred million cells
nine billion, two hundred million cells
six billion, two hundred million cells
eight billion, two hundred million cells
What are the symptoms of retinal deficiency?
Dry skin
Rough skin
Night blindness
Sensitiveness to light and ulcers
A person with a blood group ____ is considered to be an universal donor.
A Positive
AB Positive
AB Negative
O Positive
Which of the following diseases are not bacterial?
cholera and diphtheria
trichomonasis and malaria
tetanus and typhoid
tuberculosis and leprosy