NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXI04: ANIMAL KINGDOM
332782
Assertion : In ctenoplana, digestion is chiefly extracellular. Reason : Digestive tract is incomplete in ctenophores.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Digestive tract in ctenophores consists of mouth, pharynx or stomodaeum, stomach or infundibulum, anal canals and two anal pores. Since there are mouth and anal pores present, the digestive tract is complete. Thus, digestion is both extracellular and intracellular.
BIOXI04: ANIMAL KINGDOM
332783
Ctenophores are
1 Mostly fresh water and some are marine
2 Exclusively marine
3 Mostly marine and some are fresh water
4 Exclusively fresh water
Explanation:
Ctenophores are exclusively marine organisms.
BIOXI04: ANIMAL KINGDOM
332784
Select the correct one (s) for ctenophora-
1 They have similarities with cnidaria
2 They have 8 external rows of ciliated comb plates for locomotion
3 Bioluminescence
4 All
Explanation:
All the statements are correct.
BIOXI04: ANIMAL KINGDOM
332785
Biradial symmetry and lack of Cnidoblasts are the characteristics of:
1 Hydra and starfish
2 Ctenoplana and Beroe
3 Aurelia and Paramecium
4 Starfish and sea anemone
Explanation:
Ctenoplana and Beroe belong to phylum Ctenophora. They show biradial symmetry. Cnidoblasts are absent in them.
332782
Assertion : In ctenoplana, digestion is chiefly extracellular. Reason : Digestive tract is incomplete in ctenophores.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Digestive tract in ctenophores consists of mouth, pharynx or stomodaeum, stomach or infundibulum, anal canals and two anal pores. Since there are mouth and anal pores present, the digestive tract is complete. Thus, digestion is both extracellular and intracellular.
BIOXI04: ANIMAL KINGDOM
332783
Ctenophores are
1 Mostly fresh water and some are marine
2 Exclusively marine
3 Mostly marine and some are fresh water
4 Exclusively fresh water
Explanation:
Ctenophores are exclusively marine organisms.
BIOXI04: ANIMAL KINGDOM
332784
Select the correct one (s) for ctenophora-
1 They have similarities with cnidaria
2 They have 8 external rows of ciliated comb plates for locomotion
3 Bioluminescence
4 All
Explanation:
All the statements are correct.
BIOXI04: ANIMAL KINGDOM
332785
Biradial symmetry and lack of Cnidoblasts are the characteristics of:
1 Hydra and starfish
2 Ctenoplana and Beroe
3 Aurelia and Paramecium
4 Starfish and sea anemone
Explanation:
Ctenoplana and Beroe belong to phylum Ctenophora. They show biradial symmetry. Cnidoblasts are absent in them.
332782
Assertion : In ctenoplana, digestion is chiefly extracellular. Reason : Digestive tract is incomplete in ctenophores.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Digestive tract in ctenophores consists of mouth, pharynx or stomodaeum, stomach or infundibulum, anal canals and two anal pores. Since there are mouth and anal pores present, the digestive tract is complete. Thus, digestion is both extracellular and intracellular.
BIOXI04: ANIMAL KINGDOM
332783
Ctenophores are
1 Mostly fresh water and some are marine
2 Exclusively marine
3 Mostly marine and some are fresh water
4 Exclusively fresh water
Explanation:
Ctenophores are exclusively marine organisms.
BIOXI04: ANIMAL KINGDOM
332784
Select the correct one (s) for ctenophora-
1 They have similarities with cnidaria
2 They have 8 external rows of ciliated comb plates for locomotion
3 Bioluminescence
4 All
Explanation:
All the statements are correct.
BIOXI04: ANIMAL KINGDOM
332785
Biradial symmetry and lack of Cnidoblasts are the characteristics of:
1 Hydra and starfish
2 Ctenoplana and Beroe
3 Aurelia and Paramecium
4 Starfish and sea anemone
Explanation:
Ctenoplana and Beroe belong to phylum Ctenophora. They show biradial symmetry. Cnidoblasts are absent in them.
332782
Assertion : In ctenoplana, digestion is chiefly extracellular. Reason : Digestive tract is incomplete in ctenophores.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Digestive tract in ctenophores consists of mouth, pharynx or stomodaeum, stomach or infundibulum, anal canals and two anal pores. Since there are mouth and anal pores present, the digestive tract is complete. Thus, digestion is both extracellular and intracellular.
BIOXI04: ANIMAL KINGDOM
332783
Ctenophores are
1 Mostly fresh water and some are marine
2 Exclusively marine
3 Mostly marine and some are fresh water
4 Exclusively fresh water
Explanation:
Ctenophores are exclusively marine organisms.
BIOXI04: ANIMAL KINGDOM
332784
Select the correct one (s) for ctenophora-
1 They have similarities with cnidaria
2 They have 8 external rows of ciliated comb plates for locomotion
3 Bioluminescence
4 All
Explanation:
All the statements are correct.
BIOXI04: ANIMAL KINGDOM
332785
Biradial symmetry and lack of Cnidoblasts are the characteristics of:
1 Hydra and starfish
2 Ctenoplana and Beroe
3 Aurelia and Paramecium
4 Starfish and sea anemone
Explanation:
Ctenoplana and Beroe belong to phylum Ctenophora. They show biradial symmetry. Cnidoblasts are absent in them.
