On an evolutionary tree, __________.

• A. organisms that are positioned close to each other are closely related
• B. scientists are sure of the correct placement and relationships of all organisms
• C. the concept of descent with modification is not well represented
• D. None of the listed responses is correct.
• E. homologous characteristics form a nested pattern

Answer: (E)

Verified step by step guidance

1. Understand that an evolutionary tree, or phylogenetic tree, is a diagram that represents evolutionary relationships among organisms.
2. Recognize that organisms positioned close to each other on the tree are generally more closely related than those that are further apart.
3. Acknowledge that scientists use available data to hypothesize the placement and relationships of organisms, but these are not always certain due to new discoveries and interpretations.
4. The concept of descent with modification is a fundamental principle of evolutionary biology, and it is well represented in evolutionary trees as they show how species have diverged from common ancestors.
5. Homologous characteristics, which are traits inherited from a common ancestor, form a nested pattern on evolutionary trees, illustrating the shared evolutionary history of different organisms.