Question

Question 2 4 pts In what order did the following structures evolve in ancestors of humans? O nucleus, multicellularity, bilateral symmetry, vertebrate, notochord, paired appendages, lungs nucleus, multicellularity, bilateral symmetry, vertebrate, notochord, lungs, paired appendages nucleus, multicellularity, bilateral symmetry, notochord, lungs, vertebrate, paired appendages O nucleus, multicellularity, bilateral symmetry, notochord, vertebrate, paired appendages, lungs O nucleus, multicellularity, bilateral symmetry, notochord, lungs, paired appendages, vertebrate,

Answer 1

1. The correct order of appearance of the given structures during development is: Notochord, ectoderm, neural tube, somite.

2. The correct order of evolution of the given structures in the ancestors of humans is: Nucleus, Multicellularity, Bilateral symmetry, Notochord, Vertebrae, Paired appendages, Lungs.