Before there was evidence from rocks and fossils, many scientists theorized that the continents were once joined together. Using only maps, these
scientists observed that -
1) the oceans have become smaller throughout Earth's history.
2) weathering and erosion have reshaped the surface of the Earth.
3) the continents were all bordered by mountain ranges.
4) the shapes of the continents allowed them to fit together.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

i think that it is plants

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.