What is a process that involves the collection of information and ideas supported by belief or opinion.

Pseudoscience is the process that involves the collection of information and ideas which is not proved by any evidence and are backed by the belief or opinion whereas science is the study that involves the collection of information and ideas which is proved by an evidence.

It is called as pseudoscience because it is not based on any scientific fact. It is said that Astrology is a pseudoscience and is made in a way so that people believe it as a correct science.

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:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.