Biological Transport System
The Rh-negative blood group of a person is based on
presence of neutrophils
absence of Rh factors
presence of Rh factors
presence of tubulin
absence of Rh factors
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The blood group systems are discovered by scientistA. Thomas Cooley
B. Karl Landsteiner
C. Camillo Golgi
D. Ernst Haeckel
The dengue fever leads to the decrease in
A. sucrose
B. white blood cells
C. platelets
D. red blood cells
The higher temperatures cause the
A. absorption of chloroplasts
B. making of chlorophyll
C. opening of stomata
D. closure of stomata
The leukemia is caused by cancerous mutation in
A. bone marrow
B. arteries
C. atrium
D. esophagus
The cycle which is made up of alternating contractions and relaxations of the heart is called
A. systemic cycle
B. cardiac cycle
C. aortic cycle
D. pulmonary cycle
Considering all the veins of the human body, the veins that carry deoxygenated blood are
A. pulmonary veins
B. connective veins
C. endothelial veins
D. exothelial veins
The ‘Atherosclerosis’ is referred to narrowing of
A. left ventricle
B. right ventricle
C. arteries
D. atrium
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