Chordates that have jaws, vertebrae, gills, and fins are calledMultiple choice question.fishes.lancelets.hagfishes.lampreys.

Step 1: Break Down the Problem

The question asks to identify which group of chordates has specific characteristics: jaws, vertebrae, gills, and fins. We need to evaluate the options provided.

Step 2: Relevant Concepts

1. Fishes: Typically have jaws, vertebrae, gills, and fins.
2. Lancelets: Small, fish-like animals without a backbone (no vertebrae) and no jaws.
3. Hagfishes: Jawless, have a backbone but primarily known for having a cartilaginous structure rather than true vertebrae.
4. Lampreys: Jawless vertebrates, possess a backbone but lack jaws.

Step 3: Analysis and Detail

• Fishes: This is the only category that possesses all four characteristics: jaws, vertebrae, gills, and fins.
• Lancelets: Lacking a backbone and jaws, they do not fit the criteria.
• Hagfishes: Although they have a backbone, they lack jaws.
• Lampreys: While they have vertebrae, they do not have jaws.

Step 4: Verify and Summarize

The only group that meets all the outlined features of possessing jaws, vertebrae, gills, and fins is fishes.

Final Answer

Fishes are the chordates that have jaws, vertebrae, gills, and fins.