All of the following physical factors affect the mechanics of pulmonary ventilation (breathing) EXCEPT _____________.

A. pulmonary blood flow
B. lung compliance
C. alveolar surface tension
D. airway resistance


Ans: A. pulmonary blood flow

Biology & Microbiology

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Glucose (C6H12O6) has a single carbonyl group (-C=O) in its linear form. Based on the number of oxygen atoms in glucose, how many hydroxyl groups (-OH) would you expect glucose to have?

A) 6 B) 5 C) 3 D) 1

Biology & Microbiology

Which of the following is the best description of an adaptation?

a. a trait that was beneficial to survival in the past b. a trait that is currently beneficial to survival c. a trait that will be beneficial in the future d. a trait that is of no advantage to survival e. an environmental change that selects for certain traits

Biology & Microbiology

The potential ecological niche of a species is its realized niche

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

Choose the most effective means of birth control from the following list.

A. birth control pill B. condom C. spermicidal foam D. diaphragm

Biology & Microbiology