Answer: Phylogenetic trees are similar to the dichotomous keys because they used for identification and are artificial.
Then maybe we would die because sometimes we people eat fish and also the ecosystem of the ocean like the animals that eat fish such as sharks.
If the image shows a hand nurturing a plant, with the purpose to persuade people to take care of Earth, this is a visual example of C. rhetoric, or to be more precise, visual rhetoric.
Rhetoric is used with one purpose mostly - to persuade. So this would be the correct answer.
Semiotics is simply the study of meaning, whereas logos visual are just logos.