Occurs in a place that had no ecosystem before.
A. Secondary succession
B. Pioneer species
C. Ecological succession
D. Primary succession

The answer is D
Not C

The correct answer is c

Ifound this on google “according to the findings, a foramen magnum positioned toward the base of the skull is found not only in humans, but in other habitually bipedal mammals as well.” i hope this you for what your looking for