GIVING 20 POINTS FOR ANSWER 3) Jean-Baptiste de
Lamarck proposed a mechanism for how life changes over time. Explain the two principles of his mechanism.

use and disuse

inheritance of acquired characteristics

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the