These animals have only left aortic arch in their circulatory system:
Correct answer: C. Mammals only
- A. Crocodiles and mammals
- B. Birds and mammals
- C. Mammals only
- D. All of the above
Explanation
Based on the explanations provided, the correct answer to the question is option C) Mammals only.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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