SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They hunt and capture prey using tetacles
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They surround food particles using cytoplasmic extensions
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They secrete digestive enzymes and absorb the nutrients
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They are suspension feeder that filter food particles out of the water
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Detailed explanation-1: -Answer and Explanation: The phylum Porifera obtain food through the filter-feeding method, and cells in the sponge walls filter food particles from the water.
Detailed explanation-2: -The Porifera are primarily filter feeders, utilizing food particles suspended in the water and captured by the choanocytes. Food particles consist essentially of bacteria, other microorganisms, and particles of organic debris; sponges also probably absorb dissolved organic substances.
Detailed explanation-3: -The sponges belong to the phylum porifera which is known for its cellular level of organisation. They have water transport system, in which many cells work together to form the system but structurally organised tissues are absent in Porifera. Thus, the correct answer is option D.
Detailed explanation-4: -Because sponges are sessile, meaning they cannot move, they filter water to obtain their food. They are, therefore, known as filter feeders.