1. What did the very first organisms change Earth’s environment so that autotrophs could live here? 2. What major change occurred due to the large number of multicellular autotrophs in the ocean?

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

What have scientists learned about plant behavior by studying the dodder plant