Which of the following organisms causes syphilis?
Mycobacterium tuberculosis
Bordetella pertusis
Treponema pallidlum
Clostridium tetani
Correct answer is C
No explanation has been provided for this answer.
Only specially adapted micro-organisms are found in
salty water
humid air
moist soil
mouth cavities
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements is true about movement of the forearm? In
bending the arm, the biceps relax and the triceps contract
bending the arm, the biceps contract and the triceps relax
straightening the arm the biceps contract and the triceps relax
straightening the arm, both biceps and triceps contract
Correct answer is B
To bend the arm, the biceps contracts and pulls on the radius. Simultaneously, the triceps relaxes.
The role of ATP include all the following activities except
provision of energy to do work in living organisms
transmission of nerve impulse
keeping the body warm in homoithermic animals
producing water during aerobic respiration
Correct answer is B
No explanation has been provided for this answer.
Raw materials required by green plants to manufacture their food are
mainly fluids
inorganic substances
living materials
mainly gases
Correct answer is B
No explanation has been provided for this answer.