Howard is constructing a model of the tree of life. which strategy would most likely ensure that all of earth's organisms are represented
somewhere in the model?

a. draw three branches for the domains: bacteria, archaea, and eukarya

b. draw four branches for the kingdoms. protists, fungi, plants, and animals

draw a long vertical line, and label dots on the line to represent examples of each kingdom

d. draw an outline of a tree, and label the leaves with the names of known species

The answer is A. Draw branches for the domains: Bacteria, Archaea and Eukarya

Explanation:

Three Domains of Life:

Bacteria, Archaea and eukarya are the three principal branches or domains of the tree of life that explains the evolutionary relationship between all living organisms.

The first two domains, bacteria and archaea comprise the prokaryotic unicellular organisms. The third domain, eukarya includes all eukaryotic organisms.

All other organisms have evolved from these three principal domains.

answer: a. a gene that causes a specific trait.