the molecules in a cell membrane that have one end that is hydrophobic and the other end is hydrophilic are called?

Phospholipid Bilayer

or

Lipids

or

Fatty Acids

Both are correct but I do not know which you are looking for when you ask what molecule.

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: