300+ TOP MCQs on Porifera and Answers

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Porifera Multiple Choice Questions

MCQs on Porifera :

1. This about sponges is true
(a) one mouth, innumerable exits
(b) innumerable mouths, one exit
(c) large spacious stomach
(d) spicules are composed of chitin

Answer

Answer: (b)

2. _____________ is the name of the dried skeleton of ‘Venus flower basket’
(a) Euplectella
(b) Euspongia
(c) Leucosolenia
(d) Spongila

Answer

Answer: (a)

3. Members of phylum porifera are
(a) Mostly freshwater animals but few are marine entities
(b) Mostly marine animals but few are fresh water entities
(c) Exclusively freshwater animal
(d) Exclusively marine animals

Answer

Answer: (b)

4. Animals lacking excretory, respiratory and circulatory structures are
(a) Sponges
(b) Tapeworms
(c) Liver fluke
(d) Threadworms

Answer

Answer: (a)

5. These are ‘multicellular grade’ entity
(a) Vertebrates
(b) Sponges
(c) Prokaryotes
(d) Coelenterates

Answer

Answer: (b)

6. The group of animals to which Sycon belongs, can be best described as
(a) Multicellular having tissue organization, but not a body cavity
(b) Unicellular or acellular
(c) Multicellular with a gastrovascular
(d) Multicellular without any tissue organization

Answer

Answer: (d)

7. Collared, flagellated cells that cover large parts of the inner chambers of sponges, helping water circulation to continue are
(a) Porocytes
(b) Choanocytes
(c) Amoebocytes
(d) Pinacocytes

Answer

Answer: (b)

8. This is a flagellated larva of Leucosolenia
(a) Maggot
(b) Kedia
(c) Planula
(d) Parenchymula

Answer

Answer: (d)

9. Poriferan evolution from protozoans is evidenced by animals such as
(a) Paramecium
(b) Euglena
(c) Chlamydomonas
(d) Volvox

Answer

Answer: (d)

10. The chamber common to all the types of canal system of sponges is
(a) Excurrent canal
(b) Radial chamber
(c) Incurrent canal
(d) Paragastric cavity

Answer

Answer: (d)

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