QRS complex represents____________?
QRS complex represents____________?
A. Atrial systole
B. Ventricular systole
C. Atrial diastole
D. Ventricular diastole
QRS complex represents____________?
A. Atrial systole
B. Ventricular systole
C. Atrial diastole
D. Ventricular diastole
A. fertilization
B. ovulation
C. implantation
D. none of these
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by________?
A. Molecular biologists
B. Microbiologists
C. Freshwater biologists
D. Social biologist
A. It is predictive
B. It has explanatory power
C. It discourages suggestion of different hypotheses
D. None of these
A. Human population growth
B. Infectious diseases
C. Addictive drugs
D. Pollution
E. All of these
What percentage of light reaching the earth is used in photosynthesis?
A. 25%
B. 10%
C. 5%
D. 1%
A. Pepsin
B. Hcl
C. Both
D. None