Biology, asked by abhijeetganeshneman, 11 months ago

PHYLUM-HEMICHORDTA with example

Answers

Answered by 7770882511
1

Answer:

worm like structure marine animals with organ system level of organization

bilaterally symmetry

example:- balanoglossus and saccoglossus

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Answered by Elsaqueen
0

Answer:

Explanation:

HEYA USER

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HERE'S your answer

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These animals are also called as Acorn Worms. They were initially grouped under Phylum Chordata. But, research has proven that none of these organisms does not have a post-anal tail or even the notochord, which is a distinguishing feature of chordates. Hence, these animals have been given a separate phylum, called the Hemichordata.

FEATURES OF HEMI CHORDATA:-

1. Hemichordata is bilaterally symmetrical

2. Triploblastic animal.

3. They are typically marine animals.

4. They possess self constructed tube.

5. Hemichordata have a true body cavity or coelom.

6. The digestive tract is complete with an anus.

7. A buccal diverticulum is present in the proboscis.

8. Circulatory system in open type.

9. Respiration occurs through gills.

10. They perform sexual reproduction.

11. Fertilization is external.

Examples are:-

1. Balanoglossus gigas

2. Saccoglossus

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