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

Step 1: Break Down the Problem

To answer the question, we need to identify which organism from the list possesses jaws, vertebrae, gills, and fins.

Step 2: Relevant Concepts

• Hagfishes: Jawless, have a primitive cartilage structure.
• Lancelets: Also jawless and share features of early chordates.
• Fishes: Generally characterized by jaws, vertebral columns, gills, and fins.
• Lampreys: Jawless but possess a vertebral structure similar to fishes.

Step 3: Analysis and Detail

Let's analyze each option:

1. Hagfishes: They lack jaws, thus cannot be the answer.
2. Lancelets: They are primitive and do not have jaws or vertebrae, ruling them out.
3. Fishes: They typically have jaws, vertebrae, gills, and fins.
4. Lampreys: They have a vertebral structure but do not possess true jaws like fish.

Step 4: Verify and Summarize

From our analysis, the only group from the choices that has jaws, vertebrae, gills, and fins are fishes.

Final Answer

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