22) biochemical analysis uses similarities in as evidence for evolutionary relationships. a) dna sequences b) bone structure c) cellular architecture d) homologous structures

The correct answer is A) DNA sequences.

Explanation:

Evolutionary relationship determine the closely related ancestors of a particular organism. So it can help in tracing the evolutionary information about that organism. Phylogenetic classification use evolutionary relationship to identify new species.

The evolutionary relationship is determined by using a method called DNA sequencing which checks the similarities between DNA sequences within two individuals. More the similarities between the DNA sequences more closely they are related to each other.

But in prokaryotes mostly 16s rRNA sequences are used to determine the evolutionary relationship because most of the sequences are conserved in 16s rRNA. Therefore the correct answer is A) DNA sequences.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.