It is an indicator that a source may not be accurate.

a. the writing is sub-par or contains errors.
b. the author is using emotionally charged language and inappropriate words or employing a tone that reveals an obvious bias.
c. the author doesn't offer facts, statistics, or specific examples, but uses vague statements and sweeping generalizations.
d. you're unable to find any other source that presents the same exact information or point of view

The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom