cell wall and chloroplasts
Plant cells have a cell wall that adds an additional layer of protection from the external environment.
Answer:
attatch the images of the Petri dishes so we can further help in understanding this question
Answer:
B) protein synthesis
Explanation:
An RNA codes for protein synthesis. A triplet of nucleotides/bases in RNA helps in adding an amino acid into the protein strand. This triplet of nucleotides is knwon as codon and helps in adding amino acid which is specific to it. For example, AUG triplet codes for methionine while UGG codes for tryptophan. The amino acids get added in protein strand unless a stop codon is reached. Triplets UAA, UAG & UGA are stop codons. Here it may be noted that initially a polypeptide chain is synthesized by RNA but the ultimate goal of making that polypeptide chain is protein synthesis.
Study of rocks and minerals: the study of the structure of the earth is another planet especially its rocks, soil, and minerals, and it's history and origins.
