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प्रश्न
Give scientific reason
Balanoglossus is connecting link between non-chordates & chordates.
उत्तर
Balanoglossus is considered a connecting link between chordates and non chordates because it shows characteristics which are present in both the phylums. For example, Balanoglossus shows the presence of notochord and pharyngeal gill slits which is a characteristic feature of chordates. It also shows the presence of heart which is dorsal just like non chordates.
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संबंधित प्रश्न
Which of the following is a hermaphrodite animal?
In how many parts is the body of Hemichordates divided?
Draw a neat and labelled diagram.
Herdmania
Hermaphrodite organisms are ______.
State whether true or false. If false, correct the statement.
Balanoglossus is a ciliary feeder.
Choose the correct terms related to Hemichordate
______ has gill slits but does not have a notochord.
Which of the following is NOT true for Hemichordata?
Hemichordates have now been placed with the non-chordates close to echinoderms, because :
Differentiate between notochord and nerve cord
Excretory organs of different animals are given below. Choose correctly and write in the space provided.
| Animal | Excretory Organ/Unit |
| a. Balanoglossus | i. Metanephridia |
| b. Leech | ii. Nephridia |
| c. Locust | iii. Flame cells |
| d. Liver fluke | iv. Absent |
| e. Sea urchin | v. Malpighian tubule |
| f. Pila | vi. Proboscis gland |
a. ______, b. ______, c. ______
d. ______, e. ______, f. ______
