It is important for scientists to learn as much as possible about El Niño because the weather pattern a.
has so far been completely unpredictable.
b.
affects North America more than any other continent.
c.
has so many effects on organisms and land.
d.
can only be studied out in the open ocean.

ability to bond woth oxygen

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: