Wallace's line is a line
drawn by Darwin
across the mountains
between two zoo-geographical areas
between different classes of animals
Correct Answer :
C. between two zoo-geographical areas
Related Questions
The spider spins its web from a liquid secreting from its
posterior silk gland
posterior abdomen glands
mouth
salivary glands
Lizards, snakes, crocodiles and turtles belong to the class
Aves
Reptilia
Mammalia
Amphibia
Who first observed the plasma membrane?
William Seifriz
Schwann
Palade
None of the above
Somato Tropic Hormone is concerned with
Body growth
Metamorphosis
Digestion
Reproduction
The plant cells are surrounded rigidly by
plasmalemma
cell membrane
cell wall
plasma membrane
Legumes are highly nutritious because they are rich in
starch
oils
fat
protein
Nephantis is popularly called
coconut caterpillar
brown plant hopper
tobacco caterpillar
pulse beetle
In phototropism, auxins
Promote growth of cells
Inhibit cell division
Inhibit growth of cells
Stimulate differential growth of cells
Damage to hearing is caused by sounds which exceed
70 decibels
80 decibels
100 decibels
120 decibels
The condition in which there is abnormal decrease of white blood corpuscles is known as
leukaemia
leucoderma
leukopenia
anaemia
The animal that excretes uric acid
Monkey
Lizard
Mouse
Elephant
Vitamins A and C are predominantly present in
brinjal
lady's finger
potato
tomato
What are the symptoms of retinal deficiency?
Dry skin
Rough skin
Night blindness
Sensitiveness to light and ulcers
Insect pollination is known as
Hydrophily
Ornithophily
Anemophily
Entomophily
Blood is a kind of
epithelial tissue
connective tissue
nervous tissue
cartilage
Which of the following diseases is considered as completely eradicated from India, as no case of the same has been reported in last one year?
Polio
Tuberculosis
Cancer
Swine flu
Which of the following contains the highest protein content per gram?
Groundnut
Soyabean
Apple
Wheat
A plant cell is distinguishable from an animal cell by the presence of
nucleus
cell wall
chloroplasts
cell membrane
One of the sequences given below represents a complete metamorphosis. Which one is it?
Egg - adult
Egg - nymph - adult
Egg - larva - pupa - adult
young one adult
The blood of cockroach shows the following characteristics except one. Mark it.
It serves to distribute nutrient directly to every part of the body
It contains several kinds of corpuscles without haemoglobin
It collects metabolic wastes
It carries oxygen
Blood clot Inside blood vessels is prevented by
heparin
fibrinogen
thrombin
prothrombin
Biological control is to check growth of
plants
animals
weeds
one pest by another
Vitamin D deficiency leads to
sterility
pellagra
rickets
capillary fragility
Kwashiorkar is a deficiency disease
due to poor intake of proteins
due to poor intake of carbohydrates
due to (a) and (b)
due to poor intake of lipids
The pH of normal urine of man ranges from
6 - 8
4.5 - 6
2.5 - 6
8 10
The theory of use and disuse was used to explain evolution by
Lamarck
Darwin
De Vries
Wallace
Lymphocytes are manufactured by
bone marrow
spleen
liver
lymph nodes
Which one of the following was probably absent in the atmosphere at the time of origin of life?
Ammonia
Oxygen
Hydrogen
Carbon
Which among the following animals has the largest Intestine?
Cow
Lion
Monkey
Tiger
The first sign of life made its appearance on the earth about
1 million years ago
500 million years ago
1 billion or 1000 million years ago
3 billion years ago