5 Questions
Which type of symmetry allows an organism to be divided into equal halves by any plane passing through the central axis?
Radial symmetry
What type of animals have a body cavity that is absent?
Acoelomates
In which type of classification are cells arranged in two embryonic layers, external ectoderm, and internal endoderm?
Diploblastic
Which structure is formed during embryonic development and is a defining characteristic of chordates?
Notochord
In which type of symmetry can the organism be divided into equal halves only by one plane?
Bilateral symmetry
Test your knowledge of animal classification and symmetry with this quiz. Learn about the circulatory system, open and closed types, as well as various symmetry types in different organisms.
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