Answer
Verified
363k+ views
Hint: The phylum Cnidaria includes animals showing radial or biradial symmetry and are diploblastic, which means they develop from two embryonic layers. The Ctenophora comprises a phylum of invertebrate animals which lives in marine water worldwide. These are notable for the groups of cilia that they use for swimming, and are the largest animals to swim using the help of cilia.
Complete answer:
Option A Presence of mesoglea: Tissues that are found in cnidarians like coral or jellyfish that functions as a hydrostatic skeleton are termed as mesoglea. These are related to but are distinct from mesohyl, which generally refers to the tissues that are found in sponges. Ctenophores also have a thick layer of mesoglea.
Hence option A is correct.
Option B Carnivory: Cnidarians are predaceous carnivores which use their stinging tentacles to capture their prey such as things that are very small such as plankton or the things that are much larger than them like fish. Similar to the cnidarians, ctenophores are also carnivorous predators and eat a variety of things like fish eggs, small animals, larval animals, cnidarians such as jellyfish, and even other ctenophores.
Hence option B is also correct.
Option C Bioluminescence: A common phenomenon seen in many deep-sea animals is bioluminescence and is widespread among the Cnidaria. Most of the ctenophores are also bioluminescent, but that light which usually is blue or green, can only be seen in darkness.
Hence option C is also correct.
Option D All of the above: Since options A, B and C are correct.
So, option D is the correct answer.
Therefore, Option D All of the above is the correct answer.
Note:
Other similarities between cnidarians and ctenophores are: both are of biradial symmetry. Both of them lack organ systems and are of simple organization. Arrangements of different structures in both of them are in the oral-aboral axis. Both cnidarians and ctenophores have branched coelenteron and both had the presence of gelatinous mesoglea. They also have a net type nervous system.
Complete answer:
Option A Presence of mesoglea: Tissues that are found in cnidarians like coral or jellyfish that functions as a hydrostatic skeleton are termed as mesoglea. These are related to but are distinct from mesohyl, which generally refers to the tissues that are found in sponges. Ctenophores also have a thick layer of mesoglea.
Hence option A is correct.
Option B Carnivory: Cnidarians are predaceous carnivores which use their stinging tentacles to capture their prey such as things that are very small such as plankton or the things that are much larger than them like fish. Similar to the cnidarians, ctenophores are also carnivorous predators and eat a variety of things like fish eggs, small animals, larval animals, cnidarians such as jellyfish, and even other ctenophores.
Hence option B is also correct.
Option C Bioluminescence: A common phenomenon seen in many deep-sea animals is bioluminescence and is widespread among the Cnidaria. Most of the ctenophores are also bioluminescent, but that light which usually is blue or green, can only be seen in darkness.
Hence option C is also correct.
Option D All of the above: Since options A, B and C are correct.
So, option D is the correct answer.
Therefore, Option D All of the above is the correct answer.
Note:
Other similarities between cnidarians and ctenophores are: both are of biradial symmetry. Both of them lack organ systems and are of simple organization. Arrangements of different structures in both of them are in the oral-aboral axis. Both cnidarians and ctenophores have branched coelenteron and both had the presence of gelatinous mesoglea. They also have a net type nervous system.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Which are the Top 10 Largest Countries of the World?
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you graph the function fx 4x class 9 maths CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Write a stanza wise summary of money madness class 11 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE