A. Linnaeus
B. Aristotle
C. Mendel
D. Lamarck
Biology
In Hardy-Weinberg formula P2 represents frequency of………….?
A. Recessive allele
B. Dominant allele
C. Homozygous dominant individual
D. Homozygous recessive individual
In condition of high temperature, following does not occur or occurs at low level……….?
A. Vasodilation
B. Activation of sweat glands
C. Thermogenesis
D. Evaporative cooling
“lubb” sound is produced due to……………….?
A. Opening of inlet valve
B. Closure of inlet valve
C. Opening of outlet valve
D. Closure of outlet valve
Ozone depletion occurs commonly due to……………?
A. Carbon dioxide
B. Chlorofluorocarbons
C. UV rays
D. Deforestation
Deoxygenated blood first enters in ……… part in fishes?
A. Sinus venosus
B. Right atrium
C. Left atrium
D. Conus arteriosus
According to cohesion-tension theory, tension is created by………………?
A. Hydrogen bonding
B. Transpiration
C. Adhesion
D. Root prerssure
Cuticular transpiration is …………. of total transpiration?
A. 1-2%
B. 3-4%
C. 5-7%
D. 90%
An infectious disorder of respiratory system is……………..?
A. Cancer
B. Asthma
C. Tuberculosis
D. Emphysema
…………….. cells of phloem are directly involved in transport of organic solutes?
A. Parenchyma
B. Companion cell
C. Tracheid
D. Sieve element