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Answer:
Continental crust is typically 40 km (25 miles) thick, while oceanic crust is much thinner, averaging about 6 km (4 miles) in thickness. The effect of the different densities of lithospheric rock can be seen in the different average elevations of continental and oceanic crust.
Explanation:
Answer:
C
Explanation:
There was no C and D on yours but here is a picture of my son's exam.
I can’t really see the questions
Answer:
At the "Elongation" or "middle stage" of the translation, the peptide bond is formed.
Explanation:
We know that there are three steps or stages of the translation process. Among these 3, in the elongation stage, amino acids are carried to the ribosome by tRNAs, and then they become linked together to form a chain.
In this stage, at first, methionine-carrying tRNA starts in the middle slot of the ribosome, called the P site. Next to it, a new codon is opened in another slot, called the A site. The A site will be used for the "landing site" for the next tRNA. Once the matching tRNA has arrived in the A site, the formation of the peptide bond happens. This peptide bond connects one amino acid to another. This step transfers the methionine from the first tRNA onto the amino acid of the second tRNA in the A site.
