Which size of sponge can filter an entire residential pool in one day?
Correct answer: C. Basketball-sized
- A. Tennis ball-sized
- B. Ladle-sized
- C. Basketball-sized
- D. Hockey ball-sized
- E. Teaspoon-sized
Explanation
The correct answer is Option C: Basketball-sized. This size of sponge provides the necessary surface area and volume to handle the filtration of a large body of water, such as a residential pool, in a single day. Smaller sponges, like those the size of a tennis ball, ladle, hockey ball, or teaspoon, do not have sufficient capacity to filter such a large volume effectively within 24 hours.
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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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