<span>Secondary succession is faster than primary succession because the soil is already there and the soil usually contains many seeds.</span>
1.) - plasma
2.) - bone marrow.
3.) - cells
4.) hemoglobin
5.) capillary
6.) ventricle
7.) pulse
False the earth doesn't travel through space as a spaceship would the earth orbits around the sun. While a spaceship could just orbit the sun it usually has a destination in where the earth does not.
