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In examining an unknown animal species during its embryonic development, how can you be sure what you are looking at is a protostome and not a deuterostome? A. There is evidence of cephalization. B. The animal is triploblastic. C. The animal is clearly bilaterally symmetrical. D. You see a mouth, but not an anus.

Respuesta :

Option (D)  You see a mouth, but not an anus is correct.

  • You can determine that what you are looking at is a protostome and not a deuterostome by looking at the mouth.
  • The anus forms later after the mouth forms initially.

What is protostome?

  • The animal group known as protostomia was originally believed to be distinguished by the establishment of the mouth before the anus during embryonic development.
  • Arthropods (such as insects, crabs), mollusks (such as clams and snails), annelid worms, and certain other animal species are grouped together under the umbrella term "protostomia" due to similarities in their embryological development.
  • Each cell has a predetermined role, such as the development of eye tissue, hence it is important to determine cleavage.
  • During embryonic development, the mouth cavity forms before the anus.
  • True tissues are cells that form tissue and carry out a specific function.

Learn more about protostome here:

https://brainly.com/question/823820

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