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Anna35 [415]
2 years ago
13

A goal of modern taxonomy is toa. classify all organisms based on morphological similarities. b. classify all organisms into mon

ophyletic groups. c. classify all organisms based solely on genetic similarities. d. determine the evolutionary relationships only between similar species. e. None of the above is a goal of modern taxonomy.
Biology
1 answer:
dolphi86 [110]2 years ago
4 0

Answer: b. classify all organisms into monophyletic groups.

Explanation:

The modern taxonomy is the study of classification of organisms which classified the organisms on the basis of ancestral relationships, reproduction, morphology and behavior to identify the living organisms on earth and group them together. This is the scientific basis for classifying the species.

The classification of organisms into monophyletic groups is one of the criteria for classification in modern taxonomy. In monophyletic group or clade is a group which includes the descendants that belongs to the common ancestor. The organisms of the group share derived characteristics like morphological similarities, mode of reproduction and similarities at the genomic level.

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Answer:

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Explanation:

The options are:

A. Bacterial and eukaryotic cells are more closely related to  each other than to archaeans, as evidenced by the fact that  bacteria and eukaryotes do not inhabit the most extreme  environments.

B. Although their cell structures are very different, archaean and  eukaryotic cells are more closely related to each other than to  bacteria, as evidenced by the fact that Bacteria was the first  domain to split from the shared ancestor of Archaea and  Eukarya.

C. Bacteria and archaeans are more closely related to each other  than to eukaryotes, as evidenced by their cell structures. Bacteria  and archaeans are prokaryotic, while all eukaryotic cells contain  mitochondria and other membrane-bound organelles.

D. The three domains of life are equally divergent from one  another, so no two domains are more closely related to each other.  This is supported by the evolutionary tree of life because three  branches extend from one node millions of years ago.

The answer is - B. Although their cell structures are very different, archaean and  eukaryotic cells are more closely related to each other than to  bacteria, as evidenced by the fact that Bacteria was the first  domain to split from the shared ancestor of Archaea and  Eukarya.

Archaea and bacteria are similar in terms of cellular organisation and size but are however similar to eukaryotes (eukarya) at the molecular level. Archaea and Eukaryotes both undergo DNA replication and protein synthesis the same mechanism. Both of them posses closely related genes and several metabolic pathways, including the enzymes in transcription and translation.

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