Final answer:
Organisms that share a more recent common ancestor are likely to be more similar to each other than organisms that share a distant common ancestor. All similarities between organisms result from descent from a common ancestor.
Step-by-step explanation:
Descent with modification, a concept proposed by Charles Darwin, refers to the idea that organisms evolve from common ancestors and then diversify over time. Based on this concept, the following statement is true:
All similarities between organisms result from descent from a common ancestor. Organisms that share a more recent common ancestor are likely to be more similar to each other than organisms that share a distant common ancestor.
For example, humans and chimpanzees share a more recent common ancestor than humans and birds. Therefore, humans and chimpanzees have more similarities in terms of genetic code, anatomy, and behavior than humans and birds.