Keystone species for the first blank. This is because keystone species are what holds an ecosystem together.
direct impact because the removal of a keystone species is neither beneficial or a domino effect. if the entire ecosystem relies on that one species, then the niches of all the animals in that ecosystem will be directly affected.
I believe A) would be the most correct answer in this case. However, the most significant difference between eukaryotes and prokaryotes is that eukaryotic cells contain a nucleus, while the latter does NOT.
B) is incorrect because prokaryotic cells are typically smaller than eukaryotic cells. Think bacteria and other microorganisms.
C) is incorrect because, well, energy is…
D) False, a non-living microorganism would be considered a prion or virus before prokaryote.
E) Many prokaryotic cells actually contain flagellum or cilia for transport.
Let me know if you have other questions — good luck.
Earths lower atmosphere cools
Answer: a peptide containing alternating arginines and alanines.
Explanation:
As the mRNA has a repeating unit of CGCG.
Now if we extend the units with more CG (CGCGCGCGCGCG) the pairing will be as CGC-GCG-CGC-GCG. and if we see the amino acids coded by these codons are arginine for CGC and alanine for GCG.
As this synthetic mRNA doesn't require any initiation codon (AUG) thus the polypeptide will not have methionine, which is the first amino acid in every polypeptide coded by the initiation codon.
Thus, the synthetic mRNA will code for peptide having alternating arginines and alanines amino acids.
