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
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
95% of the cytoplasm of RBCs is____________?
(A) Hemoglobin
(B) Enzymes
(C) Salts
(D) Other proteins
Production of genetically identical copies of organisms/cells by asexual reproduction is called__________?
(A) Mitosis
(B) Replication
(C) Cloning
(D) Biological control
Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called__________?
(A) Active transport
(B) Passive transport
(C) Co-transport
(D) Counter transport