During a run both the respiratory
and the Circulatory systems will increase
at the same to rate as they take on a
new role in the body. (why the same rate)

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above

Blank is a rock with a find dark texture that makes up the oceanic crust