B, a nucleus. Nuclei are membrane-bound organelles inside eukaryotic organisms. Eukaryotes are protists, fungi, plants, and animal cells. A bacteria is not a eukaryote, it is a prokaryote, so it does not have the membrane-bound structure of the nucleus.
Be careful, though, bacteria still have DNA. It is simply located in the center of the cell and is not encased in a membrane.
Red blood cells exchange carbon dioxide for oxygen
They aren't all the same is not true of evolutionary trees.
<h3>What are evolutionary trees?</h3>
Evolutionary trees are trees that help to arrange and reconstruct the evolutionary history of species or groups of organisms belonging to either genera, families, or orders. The trees reconstruct and show case two form of information that is related to evolutionary change, cladogenesis and anagenesis.
Therefore, They aren't all the same is not true of evolutionary trees.
Learn more about evolutionary tress here.
brainly.com/question/2189834
QUESTION--> <span>The nucleolus is where _______ are constructed.
</span>ANSWER--> C) ribosomes
