Animalscaretips
- How do coelenterates protect themselves?
- How do coelenterates feed themselves?
- What is the importance of coelenterates?
- How do coelenterates reproduce?
- How do Coelenterates and platyhelminthes differ from each other?
- How do hydra eat?
- Can we see hydra with naked eyes?
- Why Coelenterates are called cnidarians?
- What is polyp and medusa?
- Do sponges have sperm?
- Are Coelenterates Acoelomates?
- Are Coelenterates hermaphrodite?
- How are Coelenterates different from other invertebrates?
- How do Poriferan animals differ from Coelenterate animals?
- What is the difference between Porifera and Coelenterata?
How do coelenterates protect themselves?
They typically have a tube- or cup-shaped body with a single opening ringed with tentacles that bear stinging cells (nematocysts)..they use these cells to hunt their prey for nutrition as well as for their protection.
How do coelenterates feed themselves?
Coelenterates dispatch their mostly invertebrate prey (both zooplankton and some benthos) with ectodermal batteries of stinging or sticky nematocysts. They are, in turn, fed upon by a few flatworms and sometimes crayfish.
What is the importance of coelenterates?
Coelenterates as a whole are of little economic importance. Seldom used as food by man, they are eagerly devoured by certain fishes and by invertebrates such as the crownof thorns starfish. Certain corals used as ornaments and for the manufacture of jewelry have become rare because of exploitation.
How do coelenterates reproduce?
In Coelenterates reproduction occurs both by asexual as well as sexual methods. Asexual reproduction: They reproduce asexually by the formation of buds on its surface. Afterward, it separates from the parent and grows into a new individual.
How do Coelenterates and platyhelminthes differ from each other?
Coelenterates vs Platyhelminthes
Phylum Platyhelminthes are mostly parasitic, and they are triploblastic animals where the ectoderm is very specialized with a prominent epidermis. Coelenterates show tissue level organization. Platyhelminthes show organ level organization.
How do hydra eat?
Hydra capture their food by paralyzing and killing the food organism by means of nematocysts, which are discharged into the prey. The prey is brought to the mouth (proctostome) by the tentacles, a response that is induced glutathione. ... The organism is then taken in through the mouth, which is star-shaped or circular.
Can we see hydra with naked eyes?
Hydra are truly fascinating small aquatic animals. Most hydra are tiny, reaching a maximum of only about 30 mm long when fully extended. They are barely visible to the naked eye and a hand lens or microscope are needed to be able to see them properly.
Why Coelenterates are called cnidarians?
Coelenterates are called Cnidarians because they contain specialized cells called cnidoblasts. They possess stinging structures called nematocysts.
What is polyp and medusa?
There are two basic cnidarian body shapes: a polyp form, which is attached to a surface; and an upside-down free-floating form called a medusa. Some cnidarians change form at different phases of their life cycle, while others remain in one form for their entire life.
Do sponges have sperm?
Sponges are at a cellular level of organization and thus do not have organs or even well-developed tissues; nevertheless, they produce sperm and eggs and also reproduce asexually.
Are Coelenterates Acoelomates?
Coelenterata has no separate body cavity or coelom, so it is called Acoelomate.
Are Coelenterates hermaphrodite?
Looking into their sexuality most of the organisms belonging to this phyla appear to be gonochorists/ unisexual with exceptions of few hermaphrodites. They are capable of undergoing both sexual and asexual reproduction along with other means like budding and regeneration.
How are Coelenterates different from other invertebrates?
an aquatic invertebrate animal of the phylum Cnidaria (formerly Coelenterata), which includes jellyfishes, corals, and sea anemones. They are distinguished by having a tube- or cup-shaped body.
How do Poriferan animals differ from Coelenterate animals?
The body of Porifera is made up of a single layer of cells. The body of Coelenterate is made up of two layers of cells. Example : Spongilla, Euplectella, etc. Example : Hydra, sea anemone, corals, etc.
What is the difference between Porifera and Coelenterata?
The key difference between Porifera and Coelenterata is that Porifera consist of numerous pores throughout the body, working as water intake and outlet openings whereas Coelenterata consist of a single opening on the body working as mouth/anus.
