Question:
Which animal group besides Hydra also exhibits a diffused nervous system?
Which animal group besides Hydra also exhibits a diffused nervous system?
Show Hint
A diffuse nervous system is a nerve net found in radially symmetrical animals.
Updated On: Nov 12, 2026
- Mammals
- Birds
- Ctenophora
- Insect
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
A diffuse nervous system, or nerve net, has neurons scattered through the body wall without a brain or a central nerve cord.
Step 2: Where it occurs
It is found in radially symmetrical diploblastic animals: cnidarians such as Hydra, and comb jellies of phylum Ctenophora.
Step 3: Compare the options
Insects, birds and mammals have a centralised nervous system with a brain and a nerve cord.
Final Answer:
Ctenophora also has a diffuse nervous system. \[ \boxed{\text{(C) }\text{Ctenophora}} \]
A diffuse nervous system, or nerve net, has neurons scattered through the body wall without a brain or a central nerve cord.
Step 2: Where it occurs
It is found in radially symmetrical diploblastic animals: cnidarians such as Hydra, and comb jellies of phylum Ctenophora.
Step 3: Compare the options
Insects, birds and mammals have a centralised nervous system with a brain and a nerve cord.
Final Answer:
Ctenophora also has a diffuse nervous system. \[ \boxed{\text{(C) }\text{Ctenophora}} \]
Was this answer helpful?
0
0
Top MHT CET Biology Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- Important sperm lysin used for dissolving egg covering is
- In biogas plant, the role of acidogenic bacteria is to
- In $C_{3}$ plants, the first stable product of photosynthesis during the dark reaction is
- In case of anaerobic respiration, the RQ is ___________
View More Questions
Top MHT CET Nervous system Questions
- Which region of the brain plays a crucial role in regulating glomerular filtrate by influencing the release of hormones involved in kidney function ?
- Impairment of Glossopharyngeal nerve will most probably NOT affect ............
- Which one of the following cross/es did Mendel perform?
- In somatic reflexes, the effectors are located in ..................
- Injury to medulla oblongata causes sudden death mainly as ............
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions