Calcite is the most common rock
Answer:
The correct answer is option a. "7.1".
Explanation:
One easy way to determine if a peptide sequence is acidic, basic or neutral is to check for the number of amino acid residues that are acidic, basic or neutral. In this case, most amino acid residues are neutral, which mean that under neutral conditions they have a pKa close to 7.0. Particularly, the content of 3 leucine, 2 alanine and 2 glycine residues determines that the peptide have a pI of around 7.1.
They convert energy from food into energy the cell can use - Answer
The mammoth is the most commonly known animal that lived during the Ice Age but is extinct today.
This might help: https://www.livescience.com/51793-extinct-ice-age-megafauna.html
