Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: In Ctenoplana, digestion is both extracellular and intracellular.
Reason R: In Ctenophores, fertilization is external with direct development.
In the light of the above statements, choose the correct answer from the options given below:
In Ctenoplana (a Ctenophore), digestion is both extracellular and intracellular. Ctenophores generally have external fertilization and indirect development, not direct one. Most ctenophores pass through a characteristic larval stage called cydippid larva.
Regarding the characteristics of Phylum Aschelminthes, choose the following stat
NextIdentify the correct matching
Which of the following is incorrect ?
MediumStatement I : Chordates are characterized by the presence of a notochord. Statement II : All chordat
MediumWhich of the following statements about subphylum Vertebrata are true? (a) Vertebrates have a dorsal
MediumMatch List-I with List-II : Choose the correct answer from the options given below:
MediumSpongilla is :-
MediumSelect the correct option in given table :
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