Which photomicrograph of unstained cotton fibers was taken with the iris diaphragm closed?
What will be an ideal response?
Photomicrograph a, which has the greatest contrast.
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What are the two different ways the abdominal region of the body can be divided?
A. The abdominal region can be divided into 4 quadrants or 9 regions. B. The abdominal region can only be divided into 4 regions. C. The abdominal region can be divided into 4 quadrants or 2 regions. D. The abdominal region can be divided into 4 regions or 6 quadrants.
Steven has the dominant tongue rolling phenotype but he does not know his genotype. His wife has the recessive non-tongue rolling trait. If their son can roll his tongue this means ________
A) Steven has a homozygous recessive genotype B) Steven has a heterozygous genotype C) Steven has a homozygous dominant genotype D) that it is impossible to tell Steven's genotype from this information alone
Approximately how long after birth do alveoli continue to develop?
A. 8 weeks B. 8 months C. 18 months D. 18 weeks E. 8 years
During periods of fasting, why is fat said to have a protein-sparing effect?
A. The body must have an adequate fat intake in order to absorb and metabolize proteins. B. The body must have an adequate protein intake in order to absorb and metabolize fats. C. The body metabolizes fats and proteins through the same metabolic pathways. D. The body oxidizes its spare protein before it depletes its fat reserves. E. The body does not oxidize its proteins unless it has consumed its fat reserves first.