Deficiency of __________ causes loss of appetite and poor growth?
Deficiency of __________ causes loss of appetite and poor growth?
A. zinc
B. iodine
C. copper
D. iron
A. zinc
B. iodine
C. copper
D. iron
A. Jupiter
B. Earth
C. Mars
D. Venus
Human population growth is greatest in develog countries because ?
A. the birth rate is high in develog countries
B. the death rate is high in develog countries.
C. much of the population has already reached the child bearing age.
D. most of the world’s population lives in industrialized countries.
A. Ribosome
B. Mitochondria
C. Golgi bodies
D. None of these
Who developed the telegraph code?
A. Andre Ampere
B. Samuel Morse
C. Joseph Henry
D. Jean Fourier
A. 45 dB
B. 55 dB
C. 75 dB
D. 80 dB