If the volume and the number of moles of a defined quantity of gas remains constant while the temperature exerted by the gas decreases, then the pressure of this amount of gas... A) remains constant
B) steadily decreases
C) increases the decreases
D) steadily increases
E) none of the above

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.