Answer:
Assuming this is talking about the food pyramid. There is less energy at the top of the pyramid because energy burned off by the prey in this case.
Explanation:
If a predator were to kill and eat prey, the predator would have less energy than the prey did because the prey used that energy as a means of regulating body temperature and etc.
I'm pretty sure this is how it works, please feel free to correct me if you see anything wrong with this.
Answer:
A. Alternative mRNA Splicing
Explanation:
The primary transcript of eukaryotes has introns and exons. The post-transcriptional modification includes splicing of introns and joining of exons to form a mature mRNA.
A single gene can specify two or more related proteins due to the process of alternative splicing of mRNA wherein exons are removed and joined in various combinations which in turn serve as the template for different proteins.
For example, if a primary transcript has 7 exons, the mature mRNA may have all 7 exons or some of them in various combinations. The resultant mRNAs with different combinations of exons would specify different proteins.
Monomer is only one molecule, where as polymers are multiple monomers connected
