Question

bsc 1005 exam 3, fall 2025
started: dec 4 at 8:32am
quiz instructions
question 49
which group of fishes gave rise to the amphibians?
lobe-finned fishes
jawless fishes
cartilaginous fishes
ray-finned fishes

Explanation:

Lobe - finned fishes have fleshy, lobed, paired fins which are connected to the body by a single bone. These fins evolved into limbs in amphibians. Jawless fishes are primitive and lack jaws. Cartilaginous fishes (like sharks) have a cartilaginous skeleton. Ray - finned fishes have fins supported by rays. The evolutionary transition from water to land for amphibians is closely associated with lobe - finned fishes.

Answer:

Lobe - finned fishes