Oxygen accounts for ____ % of totals human body mass?
Oxygen accounts for ____ % of totals human body mass?
A. 65%
B. 18%
C. 10%
D. 3%
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A group of similar cells that perform a specific function is:
A group of similar cells that perform a specific function is:
A. Organ
B. Tissues
C. Organelle
D. Organ SystemWith different chemical arrangements and formation Of complex molecules, the life emerges on the level of the ?
With different chemical arrangements and formation Of complex molecules, the life emerges on the level of the ?A. Cells
B. Tissues
C. Organs
D. Organ SystemNa+ -K+ ATPase pump is important for_______________?
Na+ -K+ ATPase pump is important for_______________?
A. Maintenance of resting potential
B. Massive out flux of K+ after depolarization
C. Recovery of resting potential
D. Conversion of resting potential into action potentialThe partly digested food is stored in________in cockroach?
The partly digested food is stored in________in cockroach?
A. Gizzard
B. Crop
C. Hepatic caeca
D. RectumInsulin is a human__________?
Insulin is a human__________?A. Gene
B. Protein
C. Glucose
D. DiabetesThe one which is present in all living things is ___________?
The one which is present in all living things is ___________?
A. Cell nucleus
B. DNA or RNA
C. Cell membrane
D. Vacuole