According to the cladogram above, scientists use fossil evidence to anatomically bridge the gap between fish and amphibian.
Answer: Option B
Step-by-step explanation:
The cladogram depicts the evolution from one ancestor to the branches using a diagram which is usually lines. Subsequent researches based on the molecular structures of the fossils it is categorized to fall into that particular lineage.
The cladogram between the fish and the amphibian is used to express the evolution of amphibians from fishes. In a frog the tadpole is fish like when small and then grows into an adult frog which is an amphibian. The lung fish is said to be the ancestor of all amphibians.
This bony fish is said to follow the evolution of limbs modifying their fins. The scientists conclude as per the law of nature where the organisms develop a natural ability to modify itself to suit the environment.