Has a cell wall but lacks a well-defined nucleus and organelles, and its cytoplasm doesn't have much structure.
Eukaryotic cells all feature a nucleus, and their organelles are enclosed inside membranes.<span> They also have a plasma membrane, which is a layer of phospholipids that surrounds the whole cell, and they feature an internal cytoskeleton</span>
The sternal is blank to the axillary
<span>the one that best summarizes the concept of natural selection is : c. the fittest organisms survive and reproduce
take girrafe for example. In the past, there were girrafes with long necks and there were girrafe with short necks. The girrafe with short necks were unfit to live in the environment where they obtain their foods from taller trees. So , only the long necked one that managed to survive and reproduce</span>
Yes, it is very true, if you don't know these symbols, you're basically lost.