Which feature might be used to distinguish secondary succession from primary succession? A. the lack of pioneer species in the second stage
B. the presence of pioneer species in the final stage
C. the presence of trees and large plants in the final stage
D. the presence of soil and organic matter in the first stage.

i think its white blood cells

i hope this

what is this saying?

the answer you are looking for is the united states forest service.

hope this !

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers