A. Aluminium
B. Titanium
C. Abestos
D. Mica
A. Trichomonas
B. Giardia
C. Leishmania
D. Trypanosoma
African Trypanosomiasis, also known as “sleeg sickness,” is caused by microscopic parasites of the species Trypanosoma brucei. It is transmitted by the tsetse fly (Glossina species), which is found only in rural Africa.
Which of the followong spacecrsft enabled man to step on the moon first?
A. Spuntnik I
B. Luna II
C. Vostok I
D. Apollo XI
A. Edward Jenner
B. Joseph Lister
C. William Harvey
D. Gregor Mendel
Humans usually have 20 primary (deciduous, “baby” or “milk”) teeth and 32 permanent (adult) teeth. Most people know these teeth as baby teeth, though they are also sometimes called milk teeth or primary teeth. In all, children have 20 baby teeth – 10 on the top and 10 on the bottom. These teeth act as placeholders for the adult teeth that grow in after the baby teeth fall out.
White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body aga