Why Mike a scientist repeat any spearmint if he she didn’t make a mistake in the first one?

Explanation:

i think its so that there wont be any mistake in when they are collecting their data which simplifys to  Experiments are often replicated or repeated even when no obvious mistake was visible

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.

can i get the brainliest pls

explanation:

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.