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Which of the following organism is included in the class Calcarea.

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Important Questions on Animal Diversity- I (Invertebrate Phyla)

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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
A sponge harmful to oyster industry is ___.
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera

Match List-I with List-II.

List-I List-II
(a) Metamerism (i) Coelenterata
(b) Canal system (ii) Ctenophora
(c) Comb plates (iii) Annelida
(d) Cnidoblasts (iv) Porifera
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
In the case of Poriferans, the spongocoel is lined with flagellated cells called
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Sycon belongs to a group of animals, which are best described as:
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Gemmule formation in sponges are useful in
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
What is left, when bath sponges dries up?
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Sponges are characterized by:
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Metazoans without tissue grade organization are called as
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Skeleton made of spongin fibres occurs in:
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Porocytes cells are
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Power of regeneration in sponges is due to
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Which sponge is given as a gift in Japan
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Which type of cells are absent in sponges?
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera

Statement-I: Sponges do not show any animal nature.
Statement-II: Sponges are sessile and have numerous pores.

The correct alternative is:

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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
The simplest type of canal system in phylum porifera is
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
If we take a transverse section of the body of Sycon (sponge). We would be able to find out all the following cells except a few. Find the odd cells from the box given below box.
 
Pinacocytes, Porocytes, Colloblasts,
Trophocytes, Scleroblasts, Choanocytes,
Cnidoblasts and Archaeocytes
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Internal bud for overcoming unfavourable conditions in Leucosolenia is
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Cotyledons are also called-
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Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Porifera
Food storage in Leucosolenia occur by