Science For You

[Perfection]

Which cells produce antibodies againest invading antigens ?
White Blood Corpuscles
What is the normal beat of man ?
70-72 times per minute
Which type of WBC has big nucleus ?
Lymphocyte
What is the name of the blood pigment present in prawns ?
Haemocyanin
What is the unit of muscule fibre ?
Sarcomere
What is the weight of adult human heart ?
220-260 g
Name the artery which supplies blood to the heart ?
Cornary artery
What are the two types of proteins rich in muscle fibre ?
Actin and myocin
How many cranial nerves are there in human body ?
12 pairs
Who is called as 'Father of Taxonomy' ?
Linnaeus

[Perfection]

Who wrote the book 'Origin of species ?
Charles Darwin
What is the brain size of mordern average man ?
1600 cc
Which Zoogeographical realms is called 'The museum of the world' ?
Australian region
Who proposed the term 'species' ?
John Ray in 17th Century
Who propsed 'Germplasm' theory ?
August Weismann
Name the vestigeal organ in human body which often gets infected and leads to appendicitis ?
Vermiform appendix
Which era in Geological time scale is called as 'Age of Mammals ?
Cenozoic era
Who proposed bio-genetic law ?
Haeckel
What is the stock of ancestors from which man, monkeys and apes have evolved ?
Anthropoid mammals
What is the name of modern horse according to evolution ?
Equus

[Perfection]

Name the period which is called as as 'Age of fishes'?
Devonian
What is the yellow cake ?
Uranium oxide
Who proposed the theory of Biogenesis ?
Louis Pasteur
What is the earliest known fossil of the horse ?
Eohippus
What is the term used to refer the floor of the sea ?
Benthic region
Who coined the word 'Ecosystems ?
A.G.Tansley in 1935
What is the adaptation of fish made to offer minimum resistance to the current of water ?
Stream lined body
What is pedology ?
The study of soil
Name the biome which is characterised by complete absence of trees ?
Tundra
What is the term used to indicate the death rate of individuals in a given area ?
Mortality

[Perfection]

What is the name of an apparatus in which a low temperature can be maintained ?
Cryoton
Who coined the term 'Diapause' ?
Wheeler in 1893
What is the term used for the manifestation of the species at certain specific times of the year ?
Phenology
What is the common name for a film of oil on water ?
Oil slick
What is the term used for the migration of individuals from outside into a specific area ?
Immigration
Which is the largest hot desert ?
Sahara desert
What is the method of growing same crop year after year in a soil called ?
Monoculture
What is BOD ?
Biochemical Oxygen Demand
Name the instrument used to measure blood pressure ?
Sphygmomanometer
Who introduced the sterilization of surgical instruments in hospitals ?
Joseph Lister

[installed11]

now printing machine to develop human organs.....its true .....developed in japan that machine will try to prepare organs of human body using cells in place of ink.

[Perfection]

Moon : Earth's only planet, the neighbor

The average distance from the Earth to the Moon is 384,399 km, which is about 30 times the diameter of the Earth. The Moon is about one-third the size of the Earth and has a diameter of 3,474 km. It is the fifth largest moon in the Solar System behind Ganymede, Titan, Callisto and Io. The Moon makes one complete orbit about the Earth every 27.3 days, and the
periodic variations in the geometry of the Earth-Moon-Sun system are responsible for the lunar phases that repeat every 29.5 days. The gravitational attraction of the Moon is responsible for the tides on Earth.

The Moon is the only celestial body on which human beings have orbited and landed. The first man-made object to escape Earth's gravity and pass near the Moon was the Soviet Union's Luna 1, the first man-made object to impact the lunar surface was Luna 2, and the first photographs of the normally occluded far side of the Moon were made by Luna 3, all in 1959. The first spacecraft to perform a successful lunar soft landing was Luna 9 and the first unmanned vehicle to orbit the Moon was Luna 10, both in 1966. The United States' Apollo program achieved the first (and only) manned missions to the Moon, culminating in 6 landings between 1969 and 1972.

[Perfection]

The Apollo 11 mission was the first manned mission to land on the Moon. It was the fifth human spaceflight of Project Apollo and the third human voyage to the Moon. It was also the second all-veteran crew in manned spaceflight history. Launched on July 16, 1969, it carried Commander Neil Alden Armstrong, Command Module Pilot Michael Collins and Lunar Module Pilot Edwin Eugene 'Buzz' Aldrin, Jr. On July 20, Armstrong and Aldrin became the first humans to land on the Moon, while Collins orbited above.

The mission fulfilled President John F. Kennedy's goal of reaching the moon by the end of the 1960s, which he expressed during a speech given on September 12, 1962 at Rice University Stadium in Houston, Texas.

[Perfection]

Which substance is known as 'super cooled liquid'
Glass

Which acid etches glass ?
hydro flouric acid

What is clay chemically ?
Aluminium silicate

Which compound is used as smelling salt ?
Ammonium carbonate

What is the expansion of DNA ?
Deoxy Ribo Nucleic Acid

Which enzyme caused Albinism ?
Tyosinace

What is dricold (dry ice) ?
Solid CO2

Which compound is known as tear gas ?
Benzyl chloride

What is darvau ?
Artificial fibre like hair

Which is the rarest metal available on earth ?
Rhodium