12. Which of the following is a result of sea floor spreading?

A) Trenches form at divergent boundaries.

B) Mid-ocean ridges form at divergent plate boundaries.

C)Trenches form at transform
boundaries.

D) Mid-ocean ridges form at convergent boundaries.

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Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry