Answer: The basic unit of structure and function is the CELL.
Explanation: All living organisms are made up of cells. Each cell is specialized in it's structure to support the function it is intended for. Groups of specialized cells make up tissue (also specialized for a particular function), this group of specialized tissue makes up an organ, which forms part of a system, and then part of the organism as a whole.
The three parts of amino acid are, the carboxyl group, amino group, and the R group.
the combination of its alleles
ADENOSINE TRIPHOSPATE [ATP] is a high energy molecule that is made from a NUCLEOTIDE with THREE [3] phosphates.
ATP is the energy currency of the cell, that is, it is the major biochemical molecule that is usually hydrolyzed in the cells to obtain energy.<span />
Idk what the "following stresses" are because there were no given options, but I would say a wildfire.