类别 全部 - bacteria - dna - nucleus - eukarya

作者：Anahi Figueroa 4 年以前

238

Three clades

Living organisms are classified into three primary clades: Eukarya, Archaea, and Bacteria. Eukaryotic cells are characterized by a membrane-bound nucleus and organelles, using DNA as their genetic material.

Three clades

Three clades

Eukarya

DNA as genetic storage
Presence of membrane bound organelles
-Presence of membrane-bound nucleus
Species: American black bear

Archaea

Presence of histones
-Ether bonds in cell membrane
Species: Methanobacter smithii

Bacteria

Presence of peptidoglycan in cell wall
-ester bond in cell membranes
Species: E. Coli

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