Animal
= Animal
{wiki}
<Animals> are <multicellular organisms> with <eukaryotic> cellular organization. A representative <animal> cell has a <cell membrane>, <cell nucleus> and <mitochondria>, but no <cell wall> or <chloroplasts>. A <neuron> illustrates how this common plan can acquire a specialized shape and signaling function. See https://openstax.org/books/biology-2e/pages/4-3-eukaryotic-cells[OpenStax Biology 2e, 4.3: animal cell organization].