Question

Which of the following is a true statement about protostomes? The developmental features of protostomes and deuterostomes are indistinguishable until the formation of the blastopore. All protostomes are members of the clade, Bilateria. Most protostomes have a simple digestive system with a single opening for food input and waste output. In contrast to deuterostomes, most protostomes are diploblastic.

          Which of the following is a true statement about protostomes?
The developmental features of protostomes and deuterostomes are indistinguishable until the
formation of the blastopore.
All protostomes are members of the clade, Bilateria.
Most protostomes have a simple digestive system with a single opening for food input and
waste output.
In contrast to deuterostomes, most protostomes are diploblastic.

Which of the following is a true statement about protostomes?
The developmental features of protostomes and deuterostomes are indistinguishable until the
formation of the blastopore.
All protostomes are members of the clade, Bilateria.
Most protostomes have a simple digestive system with a single opening for food input and
waste output.
In contrast to deuterostomes, most protostomes are diploblastic.

Added by Gema W.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Jakob Waidelich

Step 1

This is true. Both protostomes and deuterostomes go through similar developmental stages until the formation of the blastopore, which is the first opening that forms during gastrulation. Show more…

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Which of the following is a true statement about protostomes? The developmental features of protostomes and deuterostomes are indistinguishable until the formation of the blastopore. All protostomes are members of the clade Bilateria. Most protostomes have a simple digestive system with a single opening for food input and waste output. In contrast to deuterostomes, most protostomes are triploblastic.