During which of the following processes is animal food produced?
Photosynthesis
Respiration
Nutrition
Digestion
Transportation
Correct answer is A
No explanation has been provided for this answer.
The bicuspid valve is located between the
left auricle and left ventricle
right auricle and right ventricle
left and right ventricle
left and right auricle
left auricle and right ventricle
Correct answer is A
No explanation has been provided for this answer.
Which of the following is not seen in the transverse section of a young monocotyledonous stem?
Parenchyma
Phloem
Xylem
Cambium
Sclerenchyma
Correct answer is D
No explanation has been provided for this answer.
Which of the following gives rise to the line spectra obtained from atoms?
Kinetic energy of a moving atom
Potential energy of an electron inside an atom
Change of an electron from a higher to a lower energy level in the atom
Disturbed proton in the nucleus
Excitation of an electron in the atom
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements is correct about cathode rays? They are fast moving
atoms
ions
neutrons
protons
electrons
Correct answer is E
No explanation has been provided for this answer.