Biological Transport System
Considering all the veins of the human body, the veins that carry deoxygenated blood are
pulmonary veins
connective veins
endothelial veins
exothelial veins
pulmonary veins
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The blood group systems are discovered by scientistA. Thomas Cooley
B. Karl Landsteiner
C. Camillo Golgi
D. Ernst Haeckel
The Rh-negative blood group of a person is based on
A. presence of neutrophils
B. absence of Rh factors
C. presence of Rh factors
D. presence of tubulin
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
The ‘Atherosclerosis’ is referred to narrowing of
A. left ventricle
B. right ventricle
C. arteries
D. atrium
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