which animal develop pulsatile vessel for the first time
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Pulsatile vessel was found in the mollusca for the first time.
Explanation:
- The Kingdom animal was divided into several phylums.
- For pulsatile vessels to be found in a phylum there should be complete development of vascular system.
- Also there should be a heart or a pumping structure so that rapid and regular pulse is present in such organism.
- There should be circulatory fluid which is formed in the blood vessels.
- In case of phylum mollusca all these characteristics were present and hence the head pulsatile vessel.
To know more about phylum mollusca,
What are the characteristics of phylum mollusca?
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mollusca
Explanation:
- Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The members are known as molluscs or mollusks.
- Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms.
- Numerous molluscs also live in freshwater and terrestrial habitats.
- They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat.
- Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates.
- olluscs have been and still are an important food source for anatomically modern humans.
Learn more about mollusca
which animal developed pulsatile vessel for the first time
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