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Porifera and Cnidaria MCQs for Competitive Exams

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Porifera and Cnidaria MCQs for Competitive Exams

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Topic Notes: Porifera and Cnidaria

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Quick Overview

Porifera and Cnidaria MCQs in Biology are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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11
Which group of animals is characterized by the common occurrence of radial body symmetry?
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12
Which embryonic germ layer is responsible for the development of the endoskeleton?
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13
Which term describes the condition in sponges where sperm cells develop and mature prior to the development of ova?
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14
In coelenterates, which system originates from the differentiation of endodermal cells?
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15
Which of the following groups of animals is characterized by the absence of true jaws?
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16
In sponges, where does the process of fertilization typically occur?
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17
Which of the following organisms reproduces via budding where the buds remain attached to the parent, forming colonies?
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18
What are the primary functions of the enteron (gastrovascular cavity) in coelenterates?
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19
Which coelenterate species lacks the phenomenon of alternation of generations?
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20
In which animal phylum is the spongocoel a characteristic body cavity?
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