Advertisements
Advertisements
Question
How do poriferan animals differ from coelenterate animals?
Advertisements
Solution
| Porifera | Coelenterate | |
| 1. | They are mostly marine, non-motile, and found attached to rocks. | They are exclusively marine animals that either live in colonies or have a solitary life-span. |
| 2. | They show cellular level of organisation. | They show tissue level of organisation. |
| 3. | Spongilla, Euplectella, etc. are poriferans. | Hydra, sea anemone, corals, etc. are coelenterates. |
RELATED QUESTIONS
Explain how animals in Vertebrata are classified into further subgroups.
What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
Main characteristics of Nematoda:
What do you mean by the term triploblastic animals? Give two example.
What are differences between the following :
(a) Cartilaginous fishes and bony fishes ;
(b) Amphibia and Reptilia ;
(c) Aves and mammals.
Write down four main characters of chordates.
Describe some flight adaptations of the birds.
Give one point of difference between notochord and nerve cord.
Describe general characteristics of phylum Annelida. Give one example each class of Annelida.
Rewrite the following scientific names correctly.
ficus religiosa (peepal), zea Mays (maize) and Bombyx Mori (silk moth).
Give any one difference between the following :
Flatworm and Roundworm
Match the names of animal groups in Column I with the names of animals in column II.
|
Column I (Group) |
Column II (Animals) |
|
Annelida |
Pigeon |
|
Porifera |
Snake |
|
Mollusca |
Earthworm |
|
Reptilia |
Sponge |
|
Amphibia |
Octopus |
|
Pisces |
Trout |
|
Mammal |
Rabbit |
Which names are left out that do not match and why?
TYRANNOSAURUS
(One of the extinct animals which lived on the Earth about 100,000,000 years ago) Tyrannosaurus was about six meters long and it preyed upon other animals.

What do you think about its classification-was it an amphibian, a reptile or a mammal?
Can you call it a relative of Kangaroo? Yes/No. Give reason
Give two examples of each of the following: Annelida
Give two examples of each of the following: Arthropoda
Choose the correct answer: Mosquito is included in insects because
Choose the correct answer: The animal of phylum mollusca is
______ in 1623, introduced the binomial nomenclature.
Assertion (A): All vertebrates are chordates but all chordates are not vertebrate.
Reason (R): The members of subphylum vertebrata possess notochord, during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below:
