In Urochordata, notochord is present only in the larval tail.
BIOXI04: ANIMAL KINGDOM
332696
Read the following statements and find out the correct statement.
1 All of the above
2 Branchiostoma (Amphioxus) belongs to phylum Cephalochordata
3 Ascidia , Salpa and Doliolum belongs to phylum Urochordata
4 In vertebrates notochord is only present in the embryonic stage which is replaced by vertebral column in adult forms.
Explanation:
Ascidia, Salpa and Doliolum belong to subphylum Urochordata. Branchiostoma (Amphioxus or Lancelet) belongs to subphylum Cephalochordata. All chordates are not vertebrates but all vertebrates are chordates
BIOXI04: ANIMAL KINGDOM
332697
Choose the incorrect statement regarding ascidia
1 It is one protochordate with motile larva in its life history
2 It is marine and sessile animal
3 Adults show gills for respiration and notochord persists through out life
4 None of them
Explanation:
Ascidia, is a member of Phylum Urochordata, in which notochord is restricted to the tail of larva.
BIOXI04: ANIMAL KINGDOM
332698
Assertion : Salpa, Doliolum belong to sub phylum urochordata. Reason : Notochord is present in tail of larva stage.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
When the notochord is present in the tail of the larval stage, the animal belongs to subphylum Urochordata. Examples are Ascidia, Salpa, Doliolum.
In Urochordata, notochord is present only in the larval tail.
BIOXI04: ANIMAL KINGDOM
332696
Read the following statements and find out the correct statement.
1 All of the above
2 Branchiostoma (Amphioxus) belongs to phylum Cephalochordata
3 Ascidia , Salpa and Doliolum belongs to phylum Urochordata
4 In vertebrates notochord is only present in the embryonic stage which is replaced by vertebral column in adult forms.
Explanation:
Ascidia, Salpa and Doliolum belong to subphylum Urochordata. Branchiostoma (Amphioxus or Lancelet) belongs to subphylum Cephalochordata. All chordates are not vertebrates but all vertebrates are chordates
BIOXI04: ANIMAL KINGDOM
332697
Choose the incorrect statement regarding ascidia
1 It is one protochordate with motile larva in its life history
2 It is marine and sessile animal
3 Adults show gills for respiration and notochord persists through out life
4 None of them
Explanation:
Ascidia, is a member of Phylum Urochordata, in which notochord is restricted to the tail of larva.
BIOXI04: ANIMAL KINGDOM
332698
Assertion : Salpa, Doliolum belong to sub phylum urochordata. Reason : Notochord is present in tail of larva stage.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
When the notochord is present in the tail of the larval stage, the animal belongs to subphylum Urochordata. Examples are Ascidia, Salpa, Doliolum.
In Urochordata, notochord is present only in the larval tail.
BIOXI04: ANIMAL KINGDOM
332696
Read the following statements and find out the correct statement.
1 All of the above
2 Branchiostoma (Amphioxus) belongs to phylum Cephalochordata
3 Ascidia , Salpa and Doliolum belongs to phylum Urochordata
4 In vertebrates notochord is only present in the embryonic stage which is replaced by vertebral column in adult forms.
Explanation:
Ascidia, Salpa and Doliolum belong to subphylum Urochordata. Branchiostoma (Amphioxus or Lancelet) belongs to subphylum Cephalochordata. All chordates are not vertebrates but all vertebrates are chordates
BIOXI04: ANIMAL KINGDOM
332697
Choose the incorrect statement regarding ascidia
1 It is one protochordate with motile larva in its life history
2 It is marine and sessile animal
3 Adults show gills for respiration and notochord persists through out life
4 None of them
Explanation:
Ascidia, is a member of Phylum Urochordata, in which notochord is restricted to the tail of larva.
BIOXI04: ANIMAL KINGDOM
332698
Assertion : Salpa, Doliolum belong to sub phylum urochordata. Reason : Notochord is present in tail of larva stage.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
When the notochord is present in the tail of the larval stage, the animal belongs to subphylum Urochordata. Examples are Ascidia, Salpa, Doliolum.
In Urochordata, notochord is present only in the larval tail.
BIOXI04: ANIMAL KINGDOM
332696
Read the following statements and find out the correct statement.
1 All of the above
2 Branchiostoma (Amphioxus) belongs to phylum Cephalochordata
3 Ascidia , Salpa and Doliolum belongs to phylum Urochordata
4 In vertebrates notochord is only present in the embryonic stage which is replaced by vertebral column in adult forms.
Explanation:
Ascidia, Salpa and Doliolum belong to subphylum Urochordata. Branchiostoma (Amphioxus or Lancelet) belongs to subphylum Cephalochordata. All chordates are not vertebrates but all vertebrates are chordates
BIOXI04: ANIMAL KINGDOM
332697
Choose the incorrect statement regarding ascidia
1 It is one protochordate with motile larva in its life history
2 It is marine and sessile animal
3 Adults show gills for respiration and notochord persists through out life
4 None of them
Explanation:
Ascidia, is a member of Phylum Urochordata, in which notochord is restricted to the tail of larva.
BIOXI04: ANIMAL KINGDOM
332698
Assertion : Salpa, Doliolum belong to sub phylum urochordata. Reason : Notochord is present in tail of larva stage.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
When the notochord is present in the tail of the larval stage, the animal belongs to subphylum Urochordata. Examples are Ascidia, Salpa, Doliolum.
