The skeleton of sponges is made up of

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Question:
The skeleton of sponges is made up of

1.Calcium

2.Silica

3.Both of these

4.None of these

Posted Date:-2021-09-01 20:40:55

More MCQS Questions and answers

  1. 80% of the food of sponges consists of
  2. A sponge of Antarctica which is more than a meter tall is
  3. All of the following are coelomates except
  4. All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is
  5. All the animals of the grade radiata are
  6. Aschelminthes is also known as
  7. Based on molecular data euglenoids are thought to be closely related to
  8. Both radial and bilateral symmetry is found in the phylum
  9. Brown algae are also known as
  10. Coelom is lined by
  11. Coelom that develops from the archenteron as outpouching is
  12. Enteron in coelenterates acts as
  13. Examples of Rhodophytes are
  14. Golden algae are also known as
  15. Gut in pseudocoelomates is made from
  16. In acoelomates gut is _____ in origin.
  17. In chlorophytes the main energy stores are
  18. In most triploblasts after embryonic development the three layers are represented as
  19. In slime molds spores develop into
  20. In some cases the blastomere can produce complete embryo the cleavage will be
  21. In sponges fertilization takes place in
  22. Inner layers of the sponges are made up of
  23. Most dinoflagellates are
  24. Of the following which one is non-cellular in most cases in animals?
  25. Of the following which one is not found in series proterostomia.
  26. Of the following which one is not included in Proterostomes?
  27. Of the following which one is not the characteristic of dinoflagellates
  28. Of the following which one is not the characteristic of green algae?
  29. Of the following which one is not the characteristic of Kingdom Animalia.
  30. Of the following which one is not the characteristic of triploblasts.
  31. Porifera range in size from
  32. Pseudocoelem develops from
  33. Sperms are _____ in origin.
  34. Sperms released in water are carried to the mesenchyme in sponges by
  35. Spores produced by slime molds are
  36. The animals in which coelom is formed due to splitting of mesocerm are known as
  37. The fate of each blastomere is foretold. The cleavage will be as
  38. The function of coelom is
  39. The internal buds are known as
  40. The most important group of producers in marine ecosystem is of
  41. The name animal is derived from the word.
  42. The radial symmetry is found in the animals of
  43. The single main opening of the sponge cavity is
  44. The skeleton of sponges is made up of
  45. The skeleton of the sponges is in the form of variously shaped needle like structures called
  46. The sponges in which sperms develop first are included in the category of
  47. The system well - developed in the acoelomate is
  48. Venus flower basket is also known as
  49. Which of the following are motile zooids in cnidarians?
  50. Which of the following is responsible for Irish potato famine?

Question :- 80% of the food of sponges consists of

1.Detrital organic particles

2.Zooplankton and small animals

3.Phytoplanktons

4.all of these

Answer 1

Question :- A sponge of Antarctica which is more than a meter tall is

1.Scolymastra joubini

2.Euplectella

3.Spongilla

4.Leucoselenia

Answer 2

Question :- All of the following are coelomates except

1.Deuterosomes

2.Proterosomes

3.Hemichordates

4.Aschelminthes

Answer 4

Question :- All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is

1.TRUE

2.FALSE

3.May be true may be false

4.Unpredictable

Answer 2

Question :- All the animals of the grade radiata are

1.Diploblastic

2.Triploblastic

3.Both

4.Unicellular

Answer 1

Question :- Aschelminthes is also known as

1.Protozoans

2.Eumatazoa

3.Nematodes

4.Protoctist ancestors

Answer 3

Question :- Based on molecular data euglenoids are thought to be closely related to

1.Dinoflagellates

2.Zooflagellates

3.Protozoans

4.Algae

Answer 2

Question :- Both radial and bilateral symmetry is found in the phylum

1.Protozoa

2.Porifera

3.Echinodermata

4.None of these

Answer 3

Question :- Brown algae are also known as

1.Phaeophyta

2.Rhodophyta

3.Pyrrophyta

4.Chrysophyta

Answer 1

Question :- Coelom is lined by

1.Parietal mesoderm

2.Visceral mesoderm

3.Mesoderm

4.Both A & B

Answer 4

Question :- Coelom that develops from the archenteron as outpouching is

1.Pseudocoelom

2.Enterocoelom

3.Schizocoelom

4.None of these

Answer 2

Question :- Enteron in coelenterates acts as

1.Digestive cavity

2.Body cavity

3.Transporting cavity

4.all of these

Answer 4

Question :- Examples of Rhodophytes are

1.Chondrus

2.Polysiphonia

3.Both of these

4.Pinnularia

Answer 3

Question :- Golden algae are also known as

1.Chrysophyta

2.Phaeophyta

3.Pyrrophyta

4.Rhodophyta

Answer 1

Question :- Gut in pseudocoelomates is made from

1.Ectoderm

2.Mesoderm

3.Endoderm

4.All of these

Answer 3

Question :- In acoelomates gut is _____ in origin.

1.Ectodermal

2.Endodermal

3.Mesodermal

4.None of these

Answer 2

Question :- In chlorophytes the main energy stores are

1.Cellulose

2.Starch

3.Glycogen

4.All of these

Answer 2

Question :- In most triploblasts after embryonic development the three layers are represented as

1.Separate layers of cells

2.Structures formed from them

3.Structures associated with them

4.Their functions in body

Answer 2

Question :- In slime molds spores develop into

1.Swarm cells

2.Biflagellated cells

3.Amoeboid reproductive cells

4.All of these

Answer 4

Question :- In some cases the blastomere can produce complete embryo the cleavage will be

1.Spiral and determinate

2.Radial and indeterminate

3.Spiral and indeterminate

4.Radial and determinate

Answer 2

Question :- In sponges fertilization takes place in

1.Ectoderm

2.Mesenchyme

3.Endoderm

4.Uterus

Answer 2

Question :- Inner layers of the sponges are made up of

1.Pinacocytes

2.Choanoderm

3.Choanoytes

4.Pinacoderm

Answer 3

Question :- Most dinoflagellates are

1.Unicellular

2.Multicellular

3.Both of these

4.Zooflagellates

Answer 1

Question :- Of the following which one is non-cellular in most cases in animals?

1.Mesenchyme

2.Sclerenchyma

3.Chlorenchyma

4.Mesoderm

Answer 1

Question :- Of the following which one is not found in series proterostomia.

1.Annelida

2.Arthropoda

3.Mollusea

4.Echinodermata

Answer 4

Question :- Of the following which one is not included in Proterostomes?

1.Arthropods

2.Hemichordates

3.Annelids

4.Molluses

Answer 2

Question :- Of the following which one is not the characteristic of dinoflagellates

1.Most of them are unicellular

2.They have blooms

3.Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium

4.None of these

Answer 3

Question :- Of the following which one is not the characteristic of green algae?

1.Some green algae possess cell wall with cellulose

2.They are generally accepted as the ancestors of green plants

3.Chlorella is unicellular non-motile green algae

4.None of these

Answer 1

Question :- Of the following which one is not the characteristic of Kingdom Animalia.

1.All animals are ingestive heterotrophs

2.All animals are eukaryotes

3.All animals develop from the dissimilar gametes i.e. large sperm and small egg.

4.It is largest kingdom.

Answer 3

Question :- Of the following which one is not the characteristic of triploblasts.

1.All of them have blood vascular system

2.They may be coelomate pseudocoelomate or acoelomate

3.They are included in grade bilateria

4.All of them have digestive system

Answer 1

Question :- Porifera range in size from

1.Few millimeter wide to more than one meter tall

2.Few centimeter wide to more than one meter tall

3.Few decimeter wide to more than one meter tall

4.One meter wide to more than millimeter tall.

Answer 1

Question :- Pseudocoelem develops from

1.Blastopore

2.Plastoquinone

3.Blastocoel

4.Splitting of mesoderm

Answer 3

Question :- Sperms are _____ in origin.

1.Ectodermal

2.Mesodermal

3.Endodermal

4.None of these

Answer 2

Question :- Sperms released in water are carried to the mesenchyme in sponges by

1.Amoeboid cell

2.Stipules

3.Spicules

4.Spines

Answer 1

Question :- Spores produced by slime molds are

1.Haploid

2.Diploid

3.Triploid

4.None of these

Answer 1

Question :- The animals in which coelom is formed due to splitting of mesocerm are known as

1.Pseudocoelous

2.Schizocoelous

3.Enterocoelous

4.Emphicoelous

Answer 2

Question :- The fate of each blastomere is foretold. The cleavage will be as

1.Spiral and indeterminate

2.Radial and indeterminate

3.Radial and indeterminate

4.Spiral and determinate

Answer 4

Question :- The function of coelom is

1.To increase the size of the animals

2.To help in the functioning of reproductive system

3.To provide space for the development of organs and systems

4.None of these

Answer 3

Question :- The internal buds are known as

1.Spicules

2.Choanocytes

3.Gemmules

4.None of these

Answer 3

Question :- The most important group of producers in marine ecosystem is of

1.Diatoms

2.Euglenoids

3.Dinoflagellates

4.Brown algae

Answer 1

Question :- The name animal is derived from the word.

1.Anima

2.Anemia

3.Aname

4.All of these

Answer 1

Question :- The radial symmetry is found in the animals of

1.Protozoa

2.Porifera

3.Cnidaria

4.All of these

Answer 3

Question :- The single main opening of the sponge cavity is

1.Osculum

2.Ostia

3.Spongocoel

4.None of these

Answer 1

Question :- The skeleton of sponges is made up of

1.Calcium

2.Silica

3.Both of these

4.None of these

Answer 3

Question :- The skeleton of the sponges is in the form of variously shaped needle like structures called

1.Stripules

2.Spicules

3.Brails

4.Spines

Answer 2

Question :- The sponges in which sperms develop first are included in the category of

1.Peritandrous

2.Pertandrous

3.Protendrous

4.Protandrous

Answer 4

Question :- The system well - developed in the acoelomate is

1.Excretory system

2.Nervous system

3.Both of these

4.Transport system

Answer 3

Question :- Venus flower basket is also known as

1.Sycon

2.Euplectella

3.Leucoselenia

4.Spongilla

Answer 2

Question :- Which of the following are motile zooids in cnidarians?

1.Polyps

2.Medusae

3.Both of these

4.None of these

Answer 2

Question :- Which of the following is responsible for Irish potato famine?

1.Dinoflagellates

2.Kleps

3.Physarum polycephalum

4.Phytophthora infestans

Answer 4
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