Question

1. what type of organisms are all members of the subphylum urochordata?

○ sea stars
○ invertebrates
○ lancelets
○ tunicates

Explanation:

To solve this, we analyze each option:

• Sea stars belong to Echinodermata, not Urochordata.
• Invertebrates is a broad group, but Urochordata (now often called Tunicata) members are specifically tunicates. Lancelets are in Cephalochordata. So the correct group for Urochordata members is tunicates.

Answer:

D. tunicates (assuming the options are labeled A to D with D being tunicates; if labels differ, adjust, but the correct option is the one with "tunicates")