Answer: a cell wall
Explanation: a cell wall is a barrier that protects the plant cell. Animal cells do not need this becuase they have a cell membrane which also protects the cell.
The Gulf Stream<span>, together with its northern extension towards Europe, the </span>North Atlantic<span> Drift, ... Click here for more information. ... By carrying warm </span>water<span> northeast across the Atlantic, it </span>makes<span> Western and especially Northern ... The </span>North Atlantic Current<span> of </span>the Gulf Stream<span>, along with similar warm air currents, helps keep ...</span>
Answer:
The answer is Kingdom .
Explanation:
Kingdom is place the highest in the level of classification .
Answer:
Most pre-mRNA molecules have sections that are removed from the molecule, called introns, and sections that are linked or together to make the final mRNA, called exons.