Which of the following observations would provide the strongest evidence that two plants belong to different biological species? A. There are variations in their RNA sequences.

B. The leaves and flowers show morphological differences.

C. They produce viable but sterile offspring.

D. They occupy unique habitats in an ecosystem. .

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