Advertisements
Advertisements
Question
Give scientific reasons.
Our body irritates if it comes in contact with jelly fish.
Advertisements
Solution
- Jellyfish are a coelenterate that has cnidoblasts bearing tentacles.
- These cnidoblasts inject toxins to paralyse the prey at the time of feeding.
- When jellyfish come in contact with our bodies, this toxin is released, causing a reaction to our skin.
Therefore, our body gets irritated when we come in contact with jellyfish.
APPEARS IN
RELATED QUESTIONS
Label the following.
Tentacles are used for capturing the prey.
How does the animal in the figure protect itself?
Give scientific reason.
Our body irritates if it comes in contact with a jellyfish.
How do we destroy the harmful insects?
Mesoglea is present in ______.
Match the following.
| PHYLUM | EXAMPLES | ||
| (A) | Coelenterata | (i) | Snail |
| (B) | Platyhelminthes | (ii) | Starfish |
| (C) | Echinodermata | (iii) | Tapeworm |
| (D) | Mollusca | (iv) | Hydra |
What is nematocyst?
Real organs are absent in
Define the terms and give one example
Coelom
______ are diploblastic.
How is the body wall of coelenterates arranged?
Which of the following traits is not shared by both sea anemones and jelly fish?
Provide appropriate technical term in the space provided.
Free-floating form of cnidaria ______.
Match the following:
| Animals | Locomotory Organ |
| a. Octopus | i. Limbs |
| b. Crocodile | ii. Comb plates |
| c. Catla | iii. Tentacles |
| d. Ctenoplana | iv. Fins |
Name
An animal with cnidoblasts
Give an example for the following:
Animal, which exhibits alternation of generation
