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WorksheetsANIMAL KINGDOM TILL ASCHELMINTHES
Total questions: 10
Worksheet time: 9mins
a. Flame cells present in Ascaris help in osmoregulation and excretion.
b. Members of Ctenophora are exclusively marine with internal fertilisation.
c. Some members of Platyhelminthes possess high regeneration capacity.
a is true, b is false
a is true, c is false
b is true, a is false
c is true, a is false
1. Aschelminthes are pseudocoelomates and include parasitic as well as non-parasitic roundworms.
2. The coelenterates have tentacles and bear cnidoblasts.
Both are true
Both are false
1. is true , 2 is false
1 is false , 2 is true
In some animals, the body is found divided into compartments with serial repetition of atleast some organs. This characteristic phenomenon is called :
Metagenesis
Segmentation
Metamerism
Metamorphosis
Which of the following trait is not shared by both sea anemone and jelly fish?
exhibit tissue level of organisation
Nematocyst on the tentacles
presence of central gastro- vascuar cavity
A medusa as the dominant stage in the life cycle
Ascaris is characteristised by -
Absence of true coelom but presence of metamerism
Presence of neither true coelom nor metamerism
Presence of true coelom but absence of metamerism
Presence of true coelom but presence of metamerism
Comb plates of Ctenophores possess -
Cilia for locomotion
Cilia for filter feeding
Teeth for crushing
Teeth for feeding
Select the correct option having only incorrect statements
1. Well developed muscular pharynx.
2. They are parasitic in animals only
3. Dioecious
4. External Fertilisation
5. Indirect development only
1 , 3 , 4
3 , 4 , 5
2, 4 ,5
1 , 2 , 5
1. Mouth is present on Hypostome in case of Cnidaria.
2. In Obelia Polyp produces medusae sexually and medusae produces asexually.
3. In Ascaris an excretory pore removes body wastes from the body cavity through the excretory tube.
4. In Ctenophora ,Reproduction takes place only by asexual means.
1, 2 and 3 are correct
3 and 4 are incorrect
2 , 3 and 4 are incorrect
1 and 3 are correct
Select the correct option with all right combination of scientific name and common name -
-Adamsia (Sea anemone) , -Wuchereria (Filaria worm) -Meandrina (Brain coral).
-Pennatula (Sea-pen) ,
-Spongilla (Scypha), -Taenia (Liver fluke),
Fasciola (Liver fluke).
Ancylostoma (Hookworm) , Euspongia (boring sponge).
-Physalia (Portuguese man-of-war),
-Fasciola (Tape worm)
Assertion (A) - The members of Aschelminthes are commonly known as flatworms.
Reason (R) - The body of Aschelminthes is circular in cross section.
Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true but (R) is not the correct explanation of (A)
(A) is true but (R) is false
(A) is false but (R) is true
