I believe it is
C
........
The smallest thing they study is cells, i think!
hoped this helped!!
Answer: i can only say where the marks should go i cant put it on for you
2: H goes central L goes near alaska and near south dakota
3:?
4: BLUE=alaska, montana, VT
1: i didnt understant
hope this helps ;)
good luck
option B:is correct answer
may be this helpful!
A pioneer species is the first species to enter an ecosystem or to go back to an ecosystem that has been destroyed. They begin the ecological formation which eventually leads to the ecosystem prospering with many different biotic and abiotic factors. Note that pioneer species can be plants or animals.
