Question

1. which concept explains the presence of similar structures in different species due to shared ancestry? a. analogous structures b. vestigial structures c. homologous structures d. divergent evolution 5. what is the term for the process through which new species emerge from existing ones? a. speciation b. biodiversity c. reproductive isolation d. evolutionary divergence 6. phylogenetics is the study of: a. evolutionary relationships between plants b. evolutionary relationships between species or groups of organisms c. weather patterns d. planetary movements

Explanation:

1. Homologous structures are similar in different species due to shared ancestry. Analogous structures have similar functions but not due to common - ancestry. Vestigial structures are remnants with reduced or no function. Divergent evolution is a process, not an explanation for similar structures due to shared ancestry.
2. Speciation is the process by which new species emerge from existing ones. Biodiversity is the variety of life. Reproductive isolation is a mechanism in speciation. Evolutionary divergence is part of the process but not the term for new species emergence.
3. Phylogenetics is the study of evolutionary relationships between species or groups of organisms. It is not limited to plants, and it has nothing to do with weather patterns or planetary movements.

Answer:

1. c. Homologous structures
2. a. Speciation
3. b. Evolutionary relationships between species or groups of organisms