Each group of three mRNA bases specifies a particular A. nucleic acid.
B. protein.
C. amino acid.
D. gene.

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms