Which one of the following statements is not correct?
A. All echinoderms are viviparous
B. Roundworm has no circulatory system
C. In bony fishes, swim bladder is usually present
D. In cartilaginous fishes, fertilization is internal
Answer: Option A
This Question Belongs to Biology GK Chapter Wise >> Plant Kindom
Related Questions on Plant Kindom
A. Latent period phase
B. Vegetative phase
C. Adsorption phase
D. Liberation phase
In which kind of xylem parenchyma the parenchyma cells occur singly among the fibres and tracheids?
A. Boundary apotracheal type
B. Terminal apotracheal type
C. Banded apotracheal type
D. Diffuse apotracheal type
A. Metric approach
B. Empirical approach
C. Numerical approach
D. None of the above
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