There are _________ stomata per square cm of leaf surface in Tobacco plants?
A. 1200
B. 12000
C. 100,000
D. 1000
There are _________ stomata per square cm of leaf surface in Tobacco plants? Read More »
Biology
Water is _______ times viscous than air?
A. 50
B. 1000
C. 5000
D. 8000
Water is _______ times viscous than air? Read More »
Oxygen contents per liter of air is
A. 10 ml
B. 100 ml
C. 200 ml
D. 100ml
Oxygen contents per liter of air is Read More »
Of the following, which one is better respiratory medium
A. Air
B. Water
C. Soil
D. None of these
Of the following, which one is better respiratory medium Read More »
_______ respiration is the process by which cell utilized oxygen and produces CO2 ?
A. Cellular
B. Organismic
C. Both of these
D. None of these
_______ respiration is the process by which cell utilized oxygen and produces CO2 ? Read More »
Lungs are covered with double layered thin membranous sac called
A. Disphragm
B. Pleura
C. Pericardium
D. Rib cage
Lungs are covered with double layered thin membranous sac called Read More »
Lungs are spongy due to the presence of million of
A. Air sacs
B. Alveoli
C. Bronchioles
D. Parabronchi
Lungs are spongy due to the presence of million of Read More »
Functional units of lungs are called
A. Alveoli
B. Air sacs
C. Parabronchi
D. None of these
Functional units of lungs are called Read More »