The answer is D.
there is no evidence of any time that the earth was covered with ice or snow
Answer:
c. Tertiary protein structure is the overall three-dimensional shape involving interactions between various amino acids and their side groups.
Explanation:
Protein is made up of amino acids. These amino acids when joins together and make a polypeptide chain that makes the primary structure of the protein.
When this primary polypeptide chain becomes slightly compact and coiled by making hydrogen bond then it is called the secondary structure of the protein.
The tertiary structure of a protein is the overall three-dimensional arrangement of the polypeptide chain which is generally stabilized by both hydrophobic and hydrophilic interactions between various amino acids and their side chain.
The three-dimensional structure and shape of protein determines the function of a protein.
B. Phosphate group, since ATP includes phosphate
Answer:
a one-celled, microscopic organism belonging to any of several families of rhizopods that move and feed using pseudopodia and reproduce by fission; esp., any of a genus (Amoeba) found in soil or water or a parasitic genus (Entamoeba) found in higher animals and humans.
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