Which of the different levels of classification is the most specific? A. species
B. genus
C. domain
D. class

A. Species

Explanation:

Species is the most specific level of classification in taxonomy.

One mnemonic that can be used to remember the order of ranks is:

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This stands for domain, kingdom, phylum, class, order, family, genus, species.

And, this is in order of the most broad to the most specific rank.

So, A is the correct answer.

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.