Answer:
Angiosperms evolved during the Jurassic or Cretaceous periods.
true
Explanation:
Red and yellow mixed together create orange :)
?????????
thrhtyhhexerccex
Answer: 160 mm HgTherefore, the partial pressure of oxygen is: PO2 = (760 mm Hg) (0.21) = 160 mm Hg, while for carbon dioxide: PCO2 = (760 mm Hg) (0.0004) = 0.3 mm Hg.
