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Questions and Answers
What is the habitat of Hydra?
What is the habitat of Hydra?
Where are the testes found in Hydra?
Where are the testes found in Hydra?
How does Hydra primarily feed?
How does Hydra primarily feed?
During what conditions does Hydra reproduce asexually?
During what conditions does Hydra reproduce asexually?
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What is the main unit of the excretory system in Platyhelminthes?
What is the main unit of the excretory system in Platyhelminthes?
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What type of reproduction occurs in cnidarians involving the formation of gametes?
What type of reproduction occurs in cnidarians involving the formation of gametes?
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What is the name of the cavity in the body of cnidarians that helps in digestion, excretion, and gas exchange?
What is the name of the cavity in the body of cnidarians that helps in digestion, excretion, and gas exchange?
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What is the characteristic body form of the class Hydrozoa in the phylum Cnidaria?
What is the characteristic body form of the class Hydrozoa in the phylum Cnidaria?
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Which class of Cnidaria includes organisms such as other coral and sea anemones?
Which class of Cnidaria includes organisms such as other coral and sea anemones?
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What is the main function of nematoblasts found in the body wall of cnidarians?
What is the main function of nematoblasts found in the body wall of cnidarians?
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Study Notes
Habitat and Anatomy of Hydra
- Hydra inhabits freshwater environments, such as ponds, lakes, and slow-moving streams.
Reproductive Biology of Hydra
- Hydra reproduces asexually under favorable conditions, such as abundant food and suitable environment.
Feeding Habits of Hydra
- Hydra primarily feeds on small invertebrates, like brine shrimp and plankton, using its tentacles to capture prey.
Anatomy of Hydra
- Testes are found in the mesoglea, a gel-like substance between the ectoderm and endoderm layers in Hydra.
Excretory System of Platyhelminthes
- The main unit of the excretory system in Platyhelminthes is the protonephridium.
Reproductive Biology of Cnidarians
- Cnidarians undergo sexual reproduction, involving the formation of gametes.
Body Cavity of Cnidarians
- The gastrovascular cavity is a body cavity in cnidarians that helps in digestion, excretion, and gas exchange.
Characteristics of Hydrozoa
- The characteristic body form of the class Hydrozoa in the phylum Cnidaria is a cylindrical body with a terminal mouth and a ring of tentacles around it.
Classification of Cnidarians
- The class Anthozoa includes organisms such as coral and sea anemones.
Defense Mechanism of Cnidarians
- Nematoblasts, found in the body wall of cnidarians, function as a defense mechanism, injecting venom into predators or prey.
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Description
Test your knowledge about Phylum Cnidaria and Coelenterata with this quiz. Explore the characteristics, species, and habitats of the fascinating group of animals known as coelenterates.
