At sea level, what is the normal partial pressure of carbon dioxide in pulmonary arteries?
a. 46 mm Hg
b. 40 mm Hg
c. 100 mm Hg
d. 21 mm Hg
e. 160 mm Hg

In general, how long does it take to accomplish a long-term goal? a.a few days to a weekb.a few weeks to a monthc.a few months to a yeard. more than a year

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?