Origin of species was published by
Lamarck
Weismann
de Vries
Charles Darwin
Correct Answer :
D. Charles Darwin
Related Questions
The artificial kidney is a
machine
transplant
another's kidney
other kidney form same body
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
Who first observed the plasma membrane?
William Seifriz
Schwann
Palade
None of the above
One of the following disease cannot be prevented by the DPT (triple-antigen) immunization of children.
Tetanus
Tuberculosis
Whooping cough
Diphtheria
The part of the eye behind the lens is filled with
aqueous humor
vitreous humor
lymph
blood
In phototropism, auxins
Promote growth of cells
Inhibit cell division
Inhibit growth of cells
Stimulate differential growth of cells
Oxygen transport is a function of
White Blood Corpuscles
Red Blood-Corpuscles
Blood Platelets
Plasma
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
Which one of the endocrine glands disappears after puberty?
Thyroid
Thymus
Adrenals
Pituitary
Pulse rate is measured in the wrist by observing the jerks of blood In the
veins
capillaries
arteries
nerves
Light compensation zone refers to
where light is available in plenty
where all light energy is used
where light is maximum
beyond which light does not penetrate
The dreaded virus which, on reaching the central nervous system, produces spasms of the muscles of the throat and the cheat while swallowing, and is sure to kill the patient is
Poliomyelitis virus
AIDS virus
Smallpox virus
Rabies virus
Which of the following terms is used in Botany?
Recession
Dumping
Barter System
Biennial
Biologists have so far known, found and identified a large number of species in the plant and animal kingdom. In terms of numbers, the largest found and identified so far is from among the
fungi
plants
insects
bacteria
The liver destroys old
leucocytes
thrombocytes
erythrocytes
lymphocytes
Rate of mutation can be increased in plants by
More manure
More pesticides
X-ray
More light
The function of ribosomes is
Secretion
Excretion
Power house of the cell
Protein synthesis
Total number of amino acids in plants is
10
20
30
Plenty
Which one of the following animals stores water in the intestine?
Moloch
Camel
Zebra
Uromastix
One of the following is often called the master gland. Which one is it?
Thymus
Islets of Langerhans
Pituitary
Thyroid
Animals that feed only on dead flesh are
herbivorous
carnivorous
omnivorous
carrion-eaters
The study of ecology with pyramids was invented by
Darwin
Elton
Odum
Joshua
The corn in an underground stem that grows
horizontally
vertically
above the soil
obliquely
What is an antigen?
Toxic substance
A kind of protein
Blood platelets
Blood corpuscles
India's first transgenic crop was
Potato
Brinjal
Sugarcane
Bt cotton
The theory of 'jumping genes' was propounded by
Gregor John Mendel
Thomas Hunt Morgan
Barbara McClintock
Watson and Crick
Sexual selection theory was propounded by
Wallace
De Vires
Lamarck
Charles Darwin
Tetrodotoxin is a potent poison that
erodes blood vessels
blocks conduction of nerve impulses causing respiratory paralysis
produces damage to the kidneys
produces intestinal bleeding
What is the colour of the outer portion of the spinal cord?
gray
brown
white
yellow
AIDS is caused by the organisms which are
bacteria
fungi
viruses (HTLV III)
Protozoa