It’s B.
Bases to Amino Acids to Proteins to Cells to Tissue to Organs to Organisms
Organisms are a collection of organs, organs are a collection of tissues, tissues are a collection of cells, cells are a collection of proteins, proteins are a collection of amino acids, and amino acids are a collection of bases.
A. Elevation is the answer
The answer for this question should be c because an ecosystem is. Agrassland
