The property of a plant cell that allows it to generate a whole new plant from a single cell or tissue is called: MCQ with Answer and Explanation

Explanation:
Fertilization occurs within the ovule, where the pollen tube delivers two sperm cells. One fuses with the egg to form the zygote, the other with polar nuclei to form endosperm. The stigma receives pollen, style is the path, ovary contains ovules.

Explanation:
Gymnosperms are seed-producing plants where the ovules are not enclosed in an ovary; hence, the seeds are naked. They are predominantly perennial, evergreen, woody trees like pines and cedars. Double fertilization and the formation of triploid endosperm are unique characteristics of angiosperms, not gymnosperms. Thus, statements 1 and 2 are correct.

Explanation:
Residual volume (RV) is the air left in the lungs (about 1.2 L) after a forceful expiration. This prevents lung collapse and ensures continuous gas exchange between breaths. Tidal volume is normal breath volume, vital capacity is the maximum exhaled after maximum inhalation, and inspiratory reserve volume is the extra air that can be inhaled beyond tidal volume.