Before it leaves the nucleus, the mRNA is spliced to create mature mRNA. This splicing involves that cutting out of introns, leaving only the exons - which are the segments which code for a protein. Before it leaves the nucleus, the mRNA is spliced once again to create mature mRNA.
The answer is c hope this helps
<span>If an animal learns to use a tool in one way and then is presented with a new situation in which it applies the tool, the animal is demonstrating
a. imprinting.
b. operant conditioning.
c. classical conditioning.
d. insight learning.</span>
<span>Yeast cells reproduce quickly by budding. This is a form of asexual reproduction so all the yeast cells are identical.
Hope this helps!</span>
Answer:
The answer is Eurasia, North America, Africa, and South America.
Explanation: