What is the function of the 'Gemmule' in freshwater sponges?
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Correct answer: Asexual survival structures for harsh conditions
Gemmules are resistant internal buds containing archaeocytes surrounded by a protective spicule coat. They allow freshwater sponges to survive desiccation or freezing, germinating when favorable conditions return.
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- Which of the following describes the nervous system of a Cnidarian?
- The symbiotic algae found in the tissues of many corals, providing them with nutrients via photosynthesis, are called:
- Which skeletal element of sponges is made of a sulfur-containing protein and gives them a 'spongy' texture?
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- In Cnidarians, the stinging organelles used for defense and prey capture are known as:
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