The partial pressure of atmospheric oxygen gas at sea
level is about
a. 0.3 mm Hg.
b. 160 mm Hg.
c. 300 mm Hg.
d. 592 mm Hg.
e. 745 mm Hg.
Answer: b
You might also like to view...
What tissues in an animal's body are the targets of genes for behavior?
A. axial skeleton B. forebrain and liver C. nervous system and musculature D. reproductive and urogenital E. innate and instinctual
Rosalind Franklin did not share a part of the 1962 Nobel Prize for Medicine or Physiology because she had died four years earlier
a. True b. False Indicate whether the statement is true or false
Which of the following describes the events of apoptosis?
A) The cell dies, it is lysed, its organelles are phagocytized, and its contents are recycled. B) The cell's DNA and organelles become fragmented, the cell dies, and it is phagocytized. C) The cell's DNA and organelles become fragmented, the cell shrinks and forms blebs, and the cell's parts are packaged in vesicles that are digested by specialized cells. D) The cell's nucleus and organelles are lysed, then the cell enlarges and bursts.
Coral reefs are highly productive and diverse ecosystems because :
A) they have high turnover rates with high polyp production. B) corals produce limestone skeletons that create habitats for many ocean species. C) they are composed of polyps that live in and are adapted to warm, shallow tropical waters with high nutrient availability. D) they are made of limestone that supports many species of zooplankton with high productivity.