Which of the following is an incorrect difference between a Shark and a Whale?
Correct answer: A. A shark's heart has only one chamber whereas a whale's heart has two chambers
- A. A shark's heart has only one chamber whereas a whale's heart has two chambers
- B. Shark gills are not covered by operculum whereas those in a whale are
- C. Sharks do not possess a swim bladder whereas whales do
- D. Sharks have placoid scales on their skin whereas whales don't
Explanation
OPTION A: The heart of a shark has two chambers: an atrium (also known as the auricle) and a ventricle. The heart of a whale heart has four chambers. There are two auricles and two ventricles. Hence, A is the correct option. OPTIONS B, C, and D have a correct difference between a shark and a whale.
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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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