The very famous Thomas Alva Edison, inventor of the incandescent light bulb, the phonograph, and the motion picture camera belongs to which country?
He invented eight main categories like batteries, electric lights and power, phonographs and sound recording, cement, mining, motion. He belonged to New Jersey, USA.
__________results in the formation of zygote.
Animals from Class________are warm-blooded animals.
Which of the following is NOT a sexually transmitted disease?
The human eye is most sensitive to yellow-green light having wavelength -
What is the ph of blood?
Urine is produced in ______.
Which of the following hormones is released in excess quantity during excitement?
The ______ fight against germs that may enter our body.
Extra number of which chromosome is responsible for Down’s syndrome (Mongoloid Idiot) in man.
Which blood group has no antibodies?