121. Each kinetochore gets ________ fibers in mitosis
5
4
3
2
✅ The correct answer is option D.
Biology
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122. Vascular Cambium initially appears as actively dividing cells between:
Primary Xylem and secondary xylem.
Primary xylem and secondary phloem.
Primary xylem and primary phloem
Secondary xylem and secondary phloem.
✅ The correct answer is option C.
123. _________ respiration is directly involved in the production of energy, necessary for all living activities.
Organismic
Cellular
Both of these
None of these
✅ The correct answer is option B.
124. Sperms of liverworts, mosses, ferns move towards archegonia, in response to nucleic acid released by the ovum. This is an example of:
Chemotropic movement
Chemotactic movement.
Chemotactic movement
Hyponastic movement.
✅ The correct answer is option B.
125. ______ respiration is the process by which cell utilized oxygen and produces CO2
Cellular
Organismic
Both of these
None of these
✅ The correct answer is option A.
126. The place of attachment of leaf with the shoot is called:
Pith.
Pit.
Pulvinus.
Ecdysone.
✅ The correct answer is option C.
127. Of the following, which one is a better respiratory medium.
Air
Water
Soil
None of these
✅ The correct answer is option A.
128. Rapid movement of leaves of mimosa on touching is an example of :
Turgor movement
Nastic movement
Tropic movements
Growth movement
✅ The correct answer is option A.
130. Roots of a plant show
Positive phototropism and negative geotropism.
Negative phototropism and positive geotropism.
Negative tactic movement and positive tropic movement.
Positive geotropism of stem and roots
✅ The correct answer is option B.