Which of the following is a measure of the distending force across the lungs?
A) intra-alveolar pressure
B) atmospheric pressure
C) difference between intra-alveolar pressure and atmospheric pressure
D) transpulmonary pressure
E) intrapleural pressure
Ans: D) transpulmonary pressure
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a. NADPH b. phosphoglyceric acid (PGA) c. phosphoglyceraldehyde (PGAL) d. glucose e. ribulose bisphosphate
Which lineage of Echinoderms is made up of about 950 species of sea urchins and sand dollars, which have their ossicles fused into solid tests that restrict flexibility but provide excellent protection?
a. Holothuroidea b. Crinoidea c. Asteroidea d. Echinoidea
The proteins that bind to the DNA near regions where gene transcription begins are called
A) promoter genes. B) homeobox genes. C) mRNA. D) the gray crescent. E) transcription factors.
Which of the following infectious particles do NOT have protein in their structure?
A) bacteriophages B) prions C) animal viruses D) viroids E) both prions and viroids